Error message

Notice: Undefined offset: 0 in include() (line 35 of /home/it/www/www-icts/sites/all/themes/riley/templates/views/views-view-fields--related-file-field-collection-view.tpl.php).
Santosh Ansumali (Jawaharlal Nehru Centre for Advance Scientific Research, Bangalore)
Date & Time
Mon, 28 November 2016, 11:00 to 12:30
Emmy Noether Seminar Room, ICTS Campus, Bangalore

The Lattice Boltzmann Method (LBM), with its simplified kinetic descriptions, has emerged as an important tool for simulating hydrodynamics. Using LBM as an example, I will argue that the second law of thermodynamics in discrete space-time an provides a new way to formulate non-linearly stable numerical numerical methods for hydrodynamics. I will provide exact solution for discrete time  H-theorem and use it to build next generation entropic LBM, where non-linear stability is achieved without compromising on the simplicity of standard LBM. Finally, I will also argue that the Body Centered Cubic  arrangement of grid points  provides a more natural set-up for formulating LBM. Using these improvements, I will illustrate an order-of-magnitude gain in efficiency for LBM and thus a significant progress towards feasibility of Direct numerical simulation for realistic flows.