International Centre for Theoretical Sciences, Bengaluru
Area of Research:  Fluid Dynamics
  +91 80 4653 6370    
H-203
  rama  ictsresin

2022

  • Virus transmission by aerosol transport during short conversations. Rohit Singhal, S Ravichandran, Rama Govindarajan & Sourabh Diwan. Flow, 2 E13, 2022, doi:10.1017/flo.2022.7.

  • Surface tension as the destabiliser of a vortical interface. Rashmi Ramadugu, Prasad Perlekar & Rama Govindarajan. Journal of Fluid Mechanics, 936, 2022.

  • Instability driven by settling and evaporation in a shear flow: a model for asperitas clouds. S. Ravichandran & Rama Govindarajan. Physical Review Fluids, 7, 1, DOI: 10.1103/PhysRevFluids.7.010501, 2022.

  • Transport of droplets in a Taylor-Green vortex array. Anu V. S. Nath, Anubhab Roy, Rama Govindarajan & S. Ravichandran. Physical Review E, 105, 03510, 2022

2021

  • Early evolution of optimal perturbations in a viscosity-stratified channel. Ritabrata Thakur, Arjun Sharma & Rama Govindarajan, arXiv:2007.03628, Journal of Fluid Mechanics, Special Volume in Celebration of the GK Batchelor Centenary, 2021, 914, A10, https://doi.org/10.1017/jfm.2020.1160

  • Wetting and wrapping of a floating droplet by a thin elastic filament. S Ganga Prasath, Joel Marthelot, Narayanan Menon and Rama Govindarajan, Soft Matter, 2021, https://doi.org/10.1039/D0SM01863E

  • Shapes of a filament on the surface of a bubble. S Ganga Prasath, Joel Marthelot, Rama Govindarajan and Narayanan Menon, Proceedings of the Royal Society A, 477: 20210353, 2021.

  • Evolution of spatial patterns of rainfall and convective clouds during Indian Monsoon. Arjun Sharma, Adway Mitra, Vishal Vasan & Rama Govindarajan. International Journal of Climatology, 41, 2, 1351-1368. Doi:10.1002/joc.6812, 2021.

  • Boundary layer stability and transition to turbulence: what’s special about it? Rama Govindarajan, Resonance, 26, 10, 1403-1415, 2021.

 

2020

  • Waves, Algebraic Growth and Clumping in Sedimenting Disk Arrays. Rahul Chajwa, Narayanan Menon, Sriram Ramaswamy, Rama Govindarajan. Physical Review X, 10, 041016 (2020)

  • Chaotic Orbits of Tumbling Ellipsoids. Erich Essmann, Pei Shui, Stéphane Popinet, Stéphane Zaleski, Prashant Valluri and Rama Govindarajan, Journal of Fluid Mechanics. 903, A10, 2020, https://doi.org/10.1017/jfm.2020.595 

  • Mammatus cloud formation by settling and evaporation. S. Ravichandran, Eckart Meiburg and Rama Govindarajan. Journal of Fluid Mechanics. 899, A27, 2020, https://doi.org/10.1017/jfm.2020.439 

  • Spatio-temporal relationships between rainfall and convective clouds during Indian monsoon through a discrete lens. Arjun Sharma, Adway Mitra, Vishal Vasan and Rama Govindarajan. International Journal of Climatology, 2020, https://doi.org/10.1002/joc.6812

  • Understanding transmission dynamics of COVID-19-type infections by direct numerical simulations of cough/ sneeze flows. Sourabh S Diwan, S Ravichandran, Rama Govindarajan and Roddam Narasimha. Transactions of the Indian National Academy of Engineering, Special Issue on Covid, 2020, https://doi.org/10.1007/s41403-020-00106-w.
  • Localisation of optimal perturbations in variable viscosity channel flow. Sharath Jose, Luca Brandt and Rama Govindarajan. International Journal of Heat and Fluid Flow, Invited paper, 2020, https://doi.org/10.1016/j.ijheatfluidflow.2020.108588

  • Sinking flux of particulate organic matter in the oceans: Sensitivity to particle characteristics. Melissa M. Omand, Rama Govindarajan, Jing He, and Amala Mahadevan, Scientific Reports, 10:5582 https://doi.org/10.1038/s41598-020-60424-5, 2020.

  • Non-normal origin of modal instabilities in rotating plane shear flows. Sharath Jose and Rama Govindarajan, Proceedings of the Royal Society A, 476:20190550, 2020.

  • Effect of viscosity and density ratios on two drops rising side-by-side. Mounika Balla, Sivanandan Kavuri, Manoj Kumar Tripathi, Kirti Chandra Sahu and Rama Govindarajan, Physical Review Fluids, 5, 013601, 2020

 

2019

  • Statistics of Lagrangian trajectories in a rotating turbulent flow, Priyanka Maity, Rama Govindarajan, and Samriddhi Sankar Ray, Physical Review E, 100, 043110, 2019. 
  • Understanding droplet collisions through a model flow: Insights from a Burgers vortex. Lokahith Agasthya, Jason R. Picardo, S. Ravichandran, Rama Govindarajan, and Samriddhi Sankar Ray. Physical Review E 99, 063107, 2019. 

  • Seasonality and Buoyancy Suppression of Turbulence in the Bay of Bengal, Ritabrata Thakur, Emily L. Shroyer, Rama Govindarajan, J. Thomas Farrar, Robert A. Weller, and James N. Moum, Geophysical Research Letters, 2019, https://doi.org/10.1029/2018GL081577. 
  • Flow structures govern particle collisions in turbulence. Jason R. Picardo, Lokahith Agasthya, Rama Govindarajan and Samriddhi Sankar Ray, Physical Review Fluids Rapid Communications, 2019, 4, 032601(R). 
  • Accurate solution of the Maxey-Riley equation, and effects of Basset history, S Ganga Prasath, Vishal Vasan and Rama Govindarajan, Journal of Fluid Mechanics, 2019, 868, pp. 428-460. This paper is soon to be featured in Focus on Fluids. 
  • Two-dimensional modal and non-modal instabilities in straight-diverging-straight channel flow, Mamta Jotkar and Rama Govindarajan, Physics of Fluids, 31, 014102, 2019.
  • Spatio-temporal patterns of daily Indian summer monsoon rainfall. Adway Mitra, Amit Apte, Rama Govindarajan, Sreekar Vadlamani, Vishal Vasan, Dynamics and Statistics of the Climate System, Oxford University Press, 3, 1, 2019, https://doi.org/10.1093/climsys/dzy010. 

 

2018

  • A Discrete View of the Indian Monsoon to Identify Spatial Patterns of Rainfall, Adway Mitra, Amit Apte, Rama Govindarajan, Sreekar Vadlamani, Vishal Vasan, Dynamics and Statistics of the Climate System, Oxford University Press, , https://doi.org/10.1093/climsys/dzy009. 
  • Solid-on-solid contact in a sphere-wall collision in a viscous fluid. Sumit Kumar Birwa, G. Rajalakshmi, Rama Govindarajan, and Narayanan Menon, Physical Review Fluids, 3, 044302, 2018. 
  • Nonlinear travelling waves in rotating Hagen–Poiseuille flow, Benoit Pier & Rama Govindarajan, invited paper, Fluid Dynamics Research, 50, 031402, 2018.
  • Optimal energy growth in a stably stratified shear flow. Sharath Jose, Anubhab Roy, Rahul Bale, Krithika Iyer & Rama Govindarajan. Fluid Dynamics Research, invited paper, 50, 011421, 2018.

 

2017

  • Vortex-dipole collapse induced by droplet inertia and phase change. S. Ravichandran & Rama Govindarajan. Journal of Fluid Mechanics, 832, 745-776, 2017. 
  • Caustics-induced coalescence of small droplets near a vortex. P. Deepu, S. Ravichandran, & Rama Govindarajan, Physical Review Fluids, 2, 024305, 2017. 
  •  Lift-induced vortex dipole collapse. S. Ravichandran, Harish N. Dixit, & Rama Govindarajan, Physical Review Fluids, 2, 034702, 2017. 
  • Algebraic disturbances and their consequences in rotating channel flow. Sharath Jose, Vishnu Kuzhimparampil, Benoit Pier & Rama Govindarajan. Physical Review Fluids, 2, 083901, 2017. 
  • Two initially spherical bubbles rising in quiescent liquid. Manoj Tripathi, AR Premlatha, Kirti Sahu & Rama Govindarajan. Physical Review Fluids, 2, 073601, 2017. 
  • Nonmodal stability of Jeffery-Hamel flow. Mamta Jotkar & Rama Govindarajan, Physics of Fluids, 29, 064107, 2017.
  • Effects of viscosity and conductivity stratification on the linear stability and transient growth within compressible Couette flow. Bijaylakshmi Saikia, Ashwin Ramachandran, Krishnendu Sinha & Rama Govindarajan, Physics of Fluids, 29, 024105, 2017.
  • Clustering of heavy particles in vortical flows: a selective review. S Ravichandran, P Deepu & Rama Govindarajan, Sadhana, Invited paper, doi:10.1007/s12046-017-0621-0, 2017. 
  • Invited article: Cloud MicroAtlas Rama Govindarajan & S Ravichandran, Resonance, 22, 3, 269, 2017. 

 

2016

  • Attraction-induced jamming in the flow of foam through a channel. Karthik Menon, Rama Govindarajan & Shubha Tewari, Soft Matter, DOI: 10.1039/C6SM01719C, 2016. 
  • Universal evolution of a viscous-capillary spreading drop. Sumesh P Thampi, Ronojoy Adhikari, Ignacio Pagonnabarraga & Rama Govindarajan, Soft Matter, DOI: 10.1039/C6SM01167E. 12.28 6073-6078, 2016.
  • Effect of Prandtl number on the linear stability of compressible Couette flow. Ashwin Ramachandran, Bijaylakshmi Saikia, Krishnendu Sinha & Rama Govindarajan, International Journal of Heat and Fluid Flow, 61, Pages 553–561, 2016.
  • Relaxation of a highly deformed elastic filament at a fluid interface. S Ganga Prasath, Joel Marthelot, Rama Govindarajan & Narayanan Menon, Physical Review Fluids, 1, 033903, 2016. 
  • Dynamics of circular arrangements of vorticity in two dimensions. Rohith V. Swaminathan, S. Ravichandran, Prasad Perlekar & Rama Govindarajan, Physical Review E, 94, 013105, 2016. 
  • Linear stability analysis and direct numerical simulation of two-layer channel flow. Kirti Sahu & Rama Govindarajan, Journal of Fluid Mechanics, 798, 889 – 909, 2016. 
  • Flow around a rotating, semi-infinite cylinder in an axial stream, S. Derebail Muralidhar, B. Pier, J. F. Scott & Rama Govindarajan, Proceedings of the Royal Society A, 472, 20150850, 2016.
  • Global linear instability of flow through a converging-diverging channel. Mamta Jotkar, Gayathri Swaminathan, Kirti Sahu & Rama Govindarajan, ASME Journal of Fluids Engineering, 138, 031301-3, 2016. 
  • Inviscid instability of two-fluid free surface flow down an incline. S. Ghosh, R. Usha, Rama Govindarajan & Outi Tammisola, Meccanica, 51, 1-18, 2016.

 

2015

  • Analytical solutions for algebraic growth of disturbances in a stably stratified shear flow. Sharath Jose, Anubhab Roy, Rahul Bale & Rama Govindarajan, Proceedings of the Royal Society A, DOI: 10.1098/rspa.2015.0267, 2015.
  • Caustics and clustering in the vicinity of a vortex. S. Ravichandran and Rama Govindarajan. Physics of Fluids, 27, 033305, 2015. 
  • Dynamics of an initially spherical gas bubble rising in quiescent liquid. Manoj Tripathi, Kirti Sahu & Rama Govindarajan. Nature Communications, 6, 6268, 2015.
  • Morphological evolution of domains in spinodal decomposition. Charu Datt, Sumesh P. Thampi & Rama Govindarajan. Physical Review E Rapid Comm., 91, 010101(R).
  • The effect of initial momentum flux on the circular hydraulic jump. Vishwanath Shastry, Ratul Dasgupta, Rama Govindarajan & KR Sreenivas. ASME Journal of Fluids Engineering, 137(6), 061301, 2015.
  • Rolling motion in moving droplets. Sumesh Thampi & Rama Govindarajan, Pramana, 84, 409-421, 2015.
  • Numerical study of laminar, standing hydraulic jumps in a planar geometry. Ratul Dasgupta, Gaurav Tomar & Rama Govindarajan, European Physical Journal E, 38, 45, 2015.

 

2014

  • Instabilities in viscosity-stratified flow. Anuual Review of Fluids Mechanics, 2014. Rama Govindarajan and Kirti Sahu. 46, 331-353.  
  • Instability of a free shear layer in the vicinity of a viscosity-stratified layer, Kirti Chandra Sahu & Rama Govindarajan, Journal of Fluid Mechanics, 752, 2014: 626-648, 2014. 
  • Attracting fixed points for heavy particles in the vicinity of a vortex pair. Ravichandran Sivaramakrishnan, Prasad Perlekar and Rama Govindarajan. Physics of Fluids, 26, 013303, 2014. 
  • A minimal model for flow control on an airfoil using a poro-elastic coating. Divya Venkataraman, Alessandro Bottaro and Rama Govindarajan. Journal of Fluids and Structures, 47, 150–164, 2014.
  • Why a falling drop does not in general behave like a rising bubble, Manoj Kumar Tripathi, Kirti Chandra Sahu & Rama Govindarajan. Scientific Reports, 4, No. 4771, 2014. 
  • On vortex filament methods for linear instability analysis of aircraft wakes, Juan A. Tendero, Vassilios Theofilis, Miquel Roura & Rama Govindarajan, Aerospace Science and Technology, 44, 51-68, 2014.
  • Nonlinear dynamical systems, their stability and chaos. Lecture notes from the FLOW-NORDITA Summer School on Advanced Instability Methods for Complex Flows, Stockholm, Sweden, 2013
  • Amol Marathe and Rama Govindarajan, Applied Mechanics Reviews, 66(2), 024802, 2014.

 

2013

  • Linear stability of miscible two-fluid flow down an incline. R Usha, Outi Tammisola, & Rama Govindarajan, Physics of Fluids, 25, 104102, 2013.
  • Effect of density stratification on vortex merger. Harish Dixit & Rama Govindarajan, Physics of Fluids, 25, 016601, 2013.
  • Do liquid drops roll or slide on inclined surfaces? Sumesh P Thampi, R. Adhikari, and Rama Govindarajan, Langmuir, 29, 3339−3346, 2013. 

 

2012

  • Stability of developing film flow down an inclined surface. Sarath Ramadurgam, RVK Chakravarthy, Gaurav Tomar & Rama Govindarajan, Physics of Fluids, 24, 9171, 2012.
  • Spatio-temporal linear stability of double-diffusive two-fluid channel flow. Kirti Chandra Sahu & Rama Govindarajan, Physics of Fluids, 24, 2012. 
  • Oscillatory settling in wormlike-micelle solutions: bursts and a long time scale. Nitin Kumar, Sayantan Majumdar, Aditya Sood, Rama Govindarajan, Sriram Ramaswamy, AK Sood, Soft Matter, 8 (16). pp. 4310-4313. ISSN 1744-683X. This was designated as a “hot paper” by the journal, 2012. 
  • Secondary instabilities in incompressible axisymmetric boundary layers: effect of transverse curvature. Vinod, Narayanan & Rama Govindarajan, ASME Journal of Fluids Engineering, 134, 024503, 2012. 
  • The hydraulic jump and the shallow-water equations, Special Issue, International Journal of Advances in Engineering Sciences and Applied Mathematics, Ratul Dasgupta and Rama Govindarajan, Springer, 3 (1-4). pp. 126-130. Invited paper, 2012.

 

2012

  • Flow control via porous coating of compliant actuators: a simple interactive model, Divya Venkataraman, Alessandro Bottaro and Rama Govindarajan, Proc. IUTAM Symposium on Bluff Body Wakes.
  • On global instability of variable aspect ratio channel flows. Mamta R. Jotkar, Gayathri Swaminathan, Vassilis Theofilis & Rama Govindarajan, AIAA paper 2012-3273.

 

2011

  • Linear stability of double diffusive two-fluid channel flow. Kirti Chandra Sahu & Rama Govindarajan. Journal of Fluid Mechanics, 687, 529-539. This paper was shortlisted for “Focus on Fluids”. 
  • Stability of a vortex in radial density stratification: role of wave interactions, Harish N Dixit & Rama Govindarajan, Journal of Fluid Mechanics, 679, 582 - 615.
  • Vortex shedding patterns, their competition, and chaos in flow past inline oscillating rectangular cylinders, Srikanth T, Harish N Dixit, Rao Tatavarti & Rama Govindarajan, Physics of Fluids 23, 073603. 
  • The possible minimum energy shapes of static drops on inclined surfaces. Sumesh P.Thampi & Rama Govindarajan, Physical Review E, 84, 046304. 
  • Global instabilities in diverging channel flows, Gayathri Swaminathan, Kirti Chandra Sahu, A Sameen & Rama Govindarajan, Theoretical and Computational Fluid Dynamics, 25, 53-64. 

 

2010 

  • Non-similar solutions of the viscous shallow water equations governing weak hydraulic jumps. Ratul Das­gupta & Rama Govindarajan, Physics of Fluids 22, 112108. 
  • Vortex-induced instabilities and accelerated collapse due to inertial effects of density stratification, Harish N Dixit & Rama Govindarajan, Journal of Fluid Mechanics 646, 2010, 415-439; featured on the cover: 
  • The possible equilibrium shapes of static pendant drops, P T Sumesh & Rama Govindarajan, Journal of Chemical Physics 133, 144707. 
  • An introduction to hydrodynamic stability, Anubhab Roy & Rama Govindarajan, in Rheology of Complex Fluids ed. J Murali Krishnan, Springer. 
  • Transient growth and why we should care about it, Rahul Bale & Rama Govindarajan, Resonance, 15, No. 5, 441-457. 
  • Shedding behaviour in flow past an inline oscillating square cylinder, Srikanth T., Harish N Dixit & Rama Govindarajan, Proc. IUTAM Symposium on Bluff Body Wakes.

 

2009 

  • Instabilities due a vortex at a density interface: gravitational and centrifugal effects. Harish N Dixit & Rama Govindarajan, Proc. Seventh IUTAM Symposium on Laminar-Turbulent Transition, Ed. Schlatter & Henningson, Springer. 
  • Global Instabilities in Wall Jets. Gayathri Swaminathan, A Sameen & Rama Govindarajan, Proc. Seventh IUTAM Symposium on Laminar-Turbulent Transition, Ed. Schlatter & Henningson, Springer. 
  • Two-dimensional flow field in the vicinity of an accelerating bodies. Srikanth Rao, Rao Tatavarti & Rama Govindarajan. Proc. Second National Conference of the Ocean Society of India. 
  • Global instabilities in non-symmetric convergent-divergent channels. Gayathri Swaminathan & Rama Govindarajan, Proc. Symposium on Global Flow Instability and Control. 

 

2008

  • The relative roles of divergence and velocity slip in the stability of plane channel flow, K.C. Sahu, A. Sameen and R. Govindarajan, European Physical Journal, Appl. Phys., 44, 101107. 
  • Random Vortex-Street Model for a Self-Similar Plane Turbulent Jet, Victor S. Lvov, Anna Pomyalov, Itamar Procaccia and Rama Govindarajan, Physical Review Letters, 101, 094503. 
  • In what sense is a low-Reynolds number mixing layer stable? R. Narasimha, Pinaki Bhattacharya and Rama Govindarajan, Proc. 12th Asian Congress of Fluid Mechanics, Daejeon, Korea.

 

2007

  • The effect of wall heating on instability of channel flow. A Sameen & Rama Govindarajan, Journal of Fluid Mechanics, 577, 417-442. Corrigendum in 673 (2011), 603-605, with Rahul Bale. 
  • Stability of miscible core-annular flows with viscosity stratification. B. Selvam, S. Merk, Rama Govindarajan & E. Meiburg, Journal of Fluid Mechanics, 592, 23 -49. 
  • Gravity-free hydraulic jumps and metal femtolitre cups. Manikandan Mathur, Ratul DasGupta, Neena Susan John, N. R. Selvi, G. U. Kulkarni, & Rama Govindarajan, Physical Review Letters, 98, 164502. 
  • Linear instability of entry flow in a pipe, Kirti Chandra Sahu & Rama Govindarajan, ASME Journal of Fluids Engineering, 129, Issue 10, 1277-1280. 
  • The effectiveness of wall heating as a control option for channel flow. A Sameen & Rama Govindarajan, Sadhana, 32, 65-81. 
  • The signature of laminar instabilities in the zone of transition to turbulence. N. Vinod & Rama Govindarajan, Journal of Turbulence, 8, 1-17. 
  • A general method for linear instability computations for flow through arbitrary two-dimensional geometries. Gayathri Swaminathan & Rama Govindarajan, Proc. Seventh Asian CFD Conference. 
  • Study of a lid-driven cavity in an axisymmetric geometry. Ratul DasGupta & Rama Govindarajan, Proc. IUTAM Symposium on Unsteady Separated Flows and their Control.

 

2006

  • The critical Reynolds number of a laminar incompressible mixing layer from minimal composite theory. Pinaki Bhattacharya, Maalika Manoharan, Rama Govindarajan & R Narasimha, Journal of Fluid Mechanics, 565, 105-114. 
  • A facile method of producing femtoliter metal cups by pulsed laser ablation. Neena Susan John, N. R. Selvi, Manikandan Mathur, Rama Govindarajan & G. U. Kulkarni, J. Physical Chemistry B, 110, 22975­22978. 
  • Flow past a rectangular cylinder in a stratified fluid. Harish Dixit, A Sameen, Rama Govindarajan, Proc. Sixth Intl. Symposium on Stratified Flows, Perth, Australia (Ed: G.N. Ivey), 189-194. 
  • Direct numerical simulation of a pressure driven channel flow with stable thermal stratification. Kaushik Srinivasan & Rama Govindarajan, Proceedings of the 3rd BSME -ASME International Conference on Ther­mal Engineering, Dhaka. 
  • Instability of entry flow in a pipe. Kirti Chandra Sahu & Rama Govindarajan, Proc. Eleventh Asian Congress of Fluid Mechanics. 
  • Is a stable laminar mixing layer possible? Pinaki Bhattacharya, Rama Govindarajan & R Narasimha, Proc. Eleventh Asian Congress of Fluid Mechanics.

 

2005

  • Manipulating transition to turbulence: A viscosity stratification does not always help. Vijayakumar Chikkadi, A. Sameen & Rama Govindarajan, Physical Review Letters, 95, 264504.
  • Dynamical systems model of entrainment due to coherent structures. Srevatsan Muralidharan, KR Sreenivas & Rama Govindarajan, Physical Review E, 72, 046308. 
  • Drag reduction by polymer additives in decaying turbulence. Chirag Kalelkar, Rama Govindarajan, & Rahul Pandit, Physical Review E, 72, 017301. 
  • Stability of flow through a slowly diverging pipe. Kirti Chandra Sahu & Rama Govindarajan, Journal of Fluid Mechanics, 531, 325-334. 
  • Accurate estimate of disturbance amplitude variation from solution of minimal composite stability theory. Rama Govindarajan and R. Narasimha, Theoretical and Computational Fluid Dynamics, 19 (4): 229-235. 
  • Instabilities and transition in boundary layers. N. Vinod and Rama Govindarajan, Pramana J. Physics, special issue, 64, No. 3, 323-332. 
  • Super-linear speedup of a parallel multigrid Navier-Stokes solver on Flosolver. T. N. Venkatesh, V. R. Sarasamma, Rajalakshmy S., Kirti C. Sahu & Rama Govindarajan, Current Science, 88, No. 4, 589-593. 
  • Article: Tsunami relief: an observer’s viewpoint. 2005. Proceedings of Six months after the Tsunami, NIAS, Bengaluru. 

 

2004

  • The pattern of breakdown of laminar flow into turbulent spots. N Vinod & Rama Govindarajan, Physical Review Letters, 93, 114501. 
  • Effect of miscibility on the linear instability of two-fluid channel flow. Rama Govindarajan, International Journal of Multiphase Flow, 30/10, 1177-1192. 
  • A minimal composite theory for stability of non-parallel compressible boundary-layer flow. Sanjeev Rao, Rajeswari Seshadri & Rama Govindarajan, Theoretical and Computational Fluid Dynamics, 17, No. 4, 233-248. 
  • The segregation instability of a sheared suspension film. Rama Govindarajan, PR Nott & S Ramaswamy, Proc. Tenth Asian Cong. Fluid Mech., B31. 


2003 

  • Shell model for drag reduction with polymer additive in homogeneous turbulence. Roberto Benzi, Elisabetta De Angelis, Rama Govindarajan & Itamar Procaccia, Phys. Rev. E, 68, 016308. 
  • Stabilization of hydrodynamic flows by small viscosity variations. Rama Govindarajan, Victor S. L’vov, Itamar Procaccia & A. Sameen, Phys. Rev. E, 67, 026310. 
  • Stripes in sheared non-brownian suspensions with a free surface. Rama Govindarajan, P. R. Nott & S. Ramaswamy, Physica A, 318/1-2, 80-84. 
  • Are subtransitions in boundary layers a signature of laminar instability? N Vinod & Rama Govindarajan, Proc. International Symposium on Advances in Fluid Mech., 200-210.

 

2002

  •  “Universal behaviour of entrainment due to coherent structures in turbulent shear flow,” Rama Govindarajan, Phys. Rev. Lett., 88, 134503. 
  • “Stability analysis of an axisymmetric boundary layer,” N. Vinod, Hamsa Balakrishnan & Rama Govindarajan, Proc. Ninth Asian Cong. Fluid Mech. 
  • “Secondary instabilities in stratified channel flow,” A. Sameen, O.N. Ramesh & Rama Govindarajan, Proc. Ninth Asian Cong. Fluid Mech.
  •  “Instabilities in spatially developing flows: a fresh perspective,” Rama Govindarajan, Proc. Ninth Asian Cong. Fluid Mech. 
  • “Surprising effects of minor viscosity gradients,” Rama Govindarajan, J. Indian Inst. Sci., 82 121-127. 

 

2001 

  • “Retardation of the onset of turbulence by minor viscosity contrasts,” Rama Govindarajan, V. S. L’vov & I. Procaccia, Phys. Rev. Lett., 87, 174501. 
  • “Estimating amplitude ratios in boundary layer stability theory: a comparison between two approaches,” Rama Govindarajan & R. Narasimha, J. Fluid Mech., 439 403-412. 
  • “Stabilization and destabilization of channel flow by location of viscosity-stratified fluid layer,” Balaji T. Ranganathan & Rama Govindarajan, Phys. Fluids (Lett.), 13 No. 1, 1-3. 
  • “A theory of suspension segregation in horizontal couette cells,” Rama Govindarajan, P. R. Nott & S. Ramaswamy, Phys. Fluids (Lett.) 13, 12, 3517-3520. 
  • “Stability of non-parallel flows: minimal composite theories”, R. Narasimha & Rama Govindarajan, Proc. 14th Australasian Fluid Mech. Conf. 
  • “The transition zone in adverse pressure gradient boundary layers: results from stochastic simulations,” N. Vinod & Rama Govindarajan, Proc. XV Intl. Symp. Air Breathing Engines, 1093. 

 

2000 

  • “Transition delay by surface heating: a zonal analysis for axisymmetric bodies,” Rama Govindarajan & R. Narasimha, J. Fluid Mech., 418, 77-100. 
  • “The role of the critical layer in the stability of viscous shear flows,” Rama Govindarajan, Current Sci., 79, 6, 741-746. 
  • “Minimal composite equations and the stability of non-parallel flows,” R. Narasimha & Rama Govindarajan, Current Sci., 79, 6, 730-740. 

 

1990s 

  • 1999: “A low-order parabolic theory for two-dimensional boundary layer stability,” Rama Govindarajan & R. Narasimha, Phys. Fluids, 11 No. 6, 1449-1458.
  • 1999: “Low-order Stability Theory for Compressible Boundary Layer Flow,” Deepanjan Mitra, Rajeswari Seshadri, Sanjeev Rao & Rama Govindarajan, in Laminar-Turbulent Transition, Springer, 487-492. 
  • 1999:  The transition zone on a heated axisymmetric body," Rama Govindarajan & R. Narasimha, in Laminar-Turbulent Transition, Springer, 351-356.
  • 1999: “Stability of weakly non-similar swept-wing boundary layers,” Rama Govindarajan & R. Narasimha, in Laminar-Turbulent Transition, Springer, 193-198. 
  • 1999: “Turbulence and Flying Machines,” Resonance, 4, No. 11, 54-62. 
  • 1998: “Mixing and chaotic fluid particle trajectories in the flow around two leap-frogging vortex rings,” Rama Govindarajan, A. Leonard & S. Wiggins, in Lecture Notes in Physics, ed. C.-H. Bruneau, Springer, 482-487. 
  • 1998: “Jamming mechanisms in homogeneous and heterogeneous traffic flow,” Rizwan Ameer, Deepak Raj M & Rama Govindarajan, Proc. 3rd Asian Comput. Fluid. Dyn. Conf., 2, 144-149. 
  • 1998: “Stability of swept wing boundary layers: a low-order theory,” Rama Govindarajan, R. Narasimha & Avinash Lohit, Proc. 3rd Asian Comput. Fluid. Dyn. Conf., 2, 56-61. 
  • 1998: “Vortex sheets in plane strain and the fine structure of turbulence,” R. Narasimha & Rama Govin­darajan, in Recent Advances in Fluid Mechanics, ed. by PL Sachdev & M Venkatachalappa, Gordon & Breach, 1 67-75. 
  • 1997: “A low-order theory for stability of non-parallel boundary layer flows,” Rama Govindarajan & R. Narasimha, Proc. Roy. Soc. Lond. A, 453, 2537-2549. 
  • 1997: “Absolute instability in spatially developing two-dimensional wakes,” Rama Govindarajan, R. Narasimha & J.S.B. Gajjar, Proc. 7th Asian Cong. Fluid Mech., 1, 163-166. 
  • 1995: “Stability of spatially developing boundary layers in pressure gradients,” Rama Govindarajan & R. Narasimha, J. Fluid Mech., 300, 117-147. 
  • 1991: “The role of residual nonturbulent disturbances on transition onset in two-dimensional boundary layers,” Rama Govindarajan & R. Narasimha, J. Fluids Engg., Trans. ASME, 113, 147-149.

 

Papers in refereed conference proceedings, Book chapters, AIAA (American Institute for Aeronautics and Astronautics) since 2012

  • Newsletter Article: The Monsoon Mission Field Campaign in the Bay of Bengal. Debasis Sengupta, R. Venkatesan, M. Ravichandran, E.P. Rama Rao, Manikandan Mathur, Rashmi Sharma, Rama Govindarajan, V.S.N. Murty, V.V.S.S. Sarma & G.S. Bhat, CLIVAR Exchanges, No.79, pp 42-45, 2020.
  • Fluid dynamics in clouds: the sum of its parts. S. Ravichandran, Jason Picardo, Samriddhi Sankar Ray and Rama Govindarajan, Invited paper. In: Meyers R.A. (eds)Encyclopedia of Complexity and Systems Science. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27737-5_741-1, 2020.
  • Leading edge vortex on a rotating flat wing, Mandeep, M. C. Keerthi, P. Deepu, Saptarshi Basu, Rama Govindarajan, Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019), 2019.
  • Finding active and break spells of Indian monsoon by Markov Random Fields. Adway Mitra, Amit Apte, Rama Govindarajan, Vishal Vasan, Sreekar Vadlamani; Climate Informatics 2017.
  • Identifying planetary scale cloud bands over Indian Ocean and South Asia by Markov Random Fields. Adway Mitra, Amit Apte, Rama Govindarajan, Vishal Vasan, Sreekar Vadlamani; Climate Informatics 2017.
  • Minimal modelling for passive control via a poro-elastic coating. Divya Venkaraman, Amol Marathe, Alessandro Bottaro, Rama Govindarajan, Advances in Fluid-Structure Interaction. Volume 133 of the series Notes on Numerical Fluid Mechanics and Multidisciplinary Design pp 319-333 (Book chapter) 2016.
  • Vortex Filament and Global Instability Analysis of the Crow Mode. Juan Ángel Tendero, Pedro Paredes, Miquel Roura, Rama Govindarajan, Vassilios Theofilis. Instability and Control of Massively Separated Flows. Fluid Mechanics and Its Applications, 107, 229-234 (book chapter).
  • Laminar Separation Bubbles in Two-Dimensional Straight-Diverging-Straight Channel Flows, Mamta Jotkar, José Miguel Pérez, Vassilis Theofilis, Rama Govindarajan, Instability and Control of Massively Separated Flows, Fluid Mechanics and Its Applications Volume 107, 177-182 (book chapter).
  • Direct Numerical Simulation Study of Hydrodynamic Interactions between Immersed Solids and Wall During Flow, Pei Shui, Prashant Valluri, Stéphane Popinet & Rama Govindarajan, Procedia ​IUTAM, 15, 2015, 150–157. IUTAM Symposium on Multiphase Flows with Phase Change: Challenges and Opportunities.
  • Instability Mechanisms in Straight-Diverging-Straight Channels, Mamta Jotkar, José Miguel Pérez, Vassilis Theofilis & Rama Govindarajan. Procedia IUTAM, 14, 2015, 236–245. IUTAM_ABCM Symposium on Laminar Turbulent Transition.    
  • Linear stability of high-speed boundary layer flows at varying Prandtl numbers. Ashwin Ramachandran, Bijaylakshmi Saikia, Krishnendu Sinha, & Govindarajan. 45th AIAA, ​Thermophysics Conference Proceedings, 2015.
  • A unified framework for global instability mechanisms in the plane channel, diverging channel and backward-facing step flow, Mamta R Jotkar, Jose Miguel Perez Perez, Vassilis Theofilis, Rama Govindarajan, AIAA Paper 2013-2463.