Start
Oct 29, 2015 - 17:00
End
Oct 29, 2015 - 18:00
Venue
Room # 118 Chem. Engg. Dept.
Event Type
Speaker
Dr. Santosh Ansumali Engineering Mechanics Unit JNCASR Bangalore.
Title
Lattice Boltzmann method for turbulence model free Hydrodynamics simulations.
Abstract: Lattice Boltzmann method(LBM) is an attractive alternate to conventional computational fluid dynamics both for hydrodynamics and for gaseous microflow. In this talk I will review this method and argue that lattices used in LBM are sub-optimal and better choices do exist. I will present a new framework for Lattice Boltzmann method(LBM) which is based on sampling ideas on crystals. I will utilize the new framework and show that with appropriate choice of lattices LBM with accuracy similar to spectral method can be constructed. We show that the speed up of more than an order-of-magnitude for real-life fluid dynamics problems is achieved. Based on this framework we discuss the possibility of turbulence model free LBM simulations.Note: This seminar is mandatory for CL 702/704