TY - JOUR

T1 - Simulation of hypersonic flows with equilibrium chemical reactions on graphics processor units

AU - Emelyanov, V.

AU - Karpenko, A.

AU - Volkov, K.

PY - 2019/10

Y1 - 2019/10

N2 - When hypersonic vehicle travels in the atmosphere with a high speed, the surrounding gas experiences complicated physical and chemical processes producing high-temperature gas effects. High-temperature gas effects are a key issue related to hypersonic aerodynamic design and optimization. The finite volume method is applied to solve unsteady three-dimensional compressible Navier–Stokes equations on unstructured meshes. High-temperature gas effects altering the aerodynamics of vehicle are taken into account. Possibilities of the use of graphics processor units (GPUs) for the simulation of hypersonic flows are demonstrated. Solutions of some benchmark test cases on GPUs are reported, and a comparison between computational results of chemically equilibrium reacting and perfect air flowfields is performed. Speedup of solution of the problems of interest on GPUs with respect to their solution on central processor units (CPUs) is compared. The results obtained provide promising perspective for designing a GPU-based software framework for applications in CFD.

AB - When hypersonic vehicle travels in the atmosphere with a high speed, the surrounding gas experiences complicated physical and chemical processes producing high-temperature gas effects. High-temperature gas effects are a key issue related to hypersonic aerodynamic design and optimization. The finite volume method is applied to solve unsteady three-dimensional compressible Navier–Stokes equations on unstructured meshes. High-temperature gas effects altering the aerodynamics of vehicle are taken into account. Possibilities of the use of graphics processor units (GPUs) for the simulation of hypersonic flows are demonstrated. Solutions of some benchmark test cases on GPUs are reported, and a comparison between computational results of chemically equilibrium reacting and perfect air flowfields is performed. Speedup of solution of the problems of interest on GPUs with respect to their solution on central processor units (CPUs) is compared. The results obtained provide promising perspective for designing a GPU-based software framework for applications in CFD.

KW - Flight safety

KW - Graphics processor unit

KW - High-temperature air

KW - Hypersonic flow

KW - Parallel algorithm

KW - Unstructured mesh

KW - IMPACT

KW - HEAT-TRANSFER

KW - BLUNT-BODY

KW - AERODYNAMICS

UR - http://www.scopus.com/inward/record.url?scp=85060769021&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/simulation-hypersonic-flows-equilibrium-chemical-reactions-graphics-processor-units

U2 - 10.1016/j.actaastro.2019.01.010

DO - 10.1016/j.actaastro.2019.01.010

M3 - Article

AN - SCOPUS:85060769021

VL - 163

SP - 259

EP - 271

JO - Acta Astronautica

JF - Acta Astronautica

SN - 0094-5765

ER -