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Towards Exascale Computing of Compressible Flows using LBM

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC18P2097
Agency Tracking Number: 182064
Amount: $124,955.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: S5
Solicitation Number: SBIR_18_P1
Solicitation Year: 2018
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-07-27
Award End Date (Contract End Date): 2019-02-15
Small Business Information
635 Discovery Drive Northwest
Huntsville, AL 35806-1178
United States
DUNS: 622989239
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Bono Wasistho
 (256) 763-6500
Business Contact
 Bono Wasistho
Phone: (256) 763-6500
Research Institution

As computer architecture becomes more parallel, numerical simulations must follow suit and exploit parallel algorithms effectively. An exascale-capable computational fluid dynamic method using Lattice Boltzmann Method (LBM) has been proposed to simulate compressible flow. The method is embarrassingly parallel which allows the method to fully utilize parallel architectures such as Graphics Processing Units (GPUs). The method improves upon previous methods and allows for variable fluid properties including specific heat ratio and Prandtl number. In addition, the method increases the traditional Mach number limit of LBM from 0.2 to 3.0 allowing for the method to simulate transonic and supersonic phenomena. The Phase I project will investigate the accuracy and speed of the method with respect to existing NASA solvers including NASA OVERFLOW and NASA FUN3D. The LBM solver will be written in serial and in parallel using NVIDIA’s CUDA to allow for GPU use. Future work is discussed to improve upon the method and to incorporate the method into NASA solvers such as NASA LAVA and NASA Cart3D.

* Information listed above is at the time of submission. *

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