TY - GEN
T1 - A comparative study of Navier-Stokes, Burnett, DSMC, and Boltzmann solutions for hypersonic flow past 2-D bodies
AU - Chen, R.
AU - Agarwal, R. K.
AU - Cheremisin, F. G.
AU - Bondar, Y.
PY - 2007
Y1 - 2007
N2 - The results of 2-D numerical simulations of hypersonic flow past 2-D blunt bodies at low to high Knudsen Numbers are presented. Several computational models are employed, namely the Navier-Stokes equations, Burnett equations, Direct Simulation Monte Carlo (DSMC), and the Boltzmann equation. The effect of Knudsen number Kn varying from 0.01 to 0.1 is investigated for Mach 3 and Mach 10 flows past a blunt body. It is found that all the solutions (Navier-Stokes, Burnett, DSMC, and Boltzmann) at Kn = 0.1 are in close agreement with each other. However, at Kn = 0.01, there is a large difference between the solutions based on Navier-Stokes and Burnett equations with those based on the DSMC and Boltzmann solver; however the N.S. and Burnett solutions agree with each other and the DSMC and Boltzmann solutions are in close agreement.
AB - The results of 2-D numerical simulations of hypersonic flow past 2-D blunt bodies at low to high Knudsen Numbers are presented. Several computational models are employed, namely the Navier-Stokes equations, Burnett equations, Direct Simulation Monte Carlo (DSMC), and the Boltzmann equation. The effect of Knudsen number Kn varying from 0.01 to 0.1 is investigated for Mach 3 and Mach 10 flows past a blunt body. It is found that all the solutions (Navier-Stokes, Burnett, DSMC, and Boltzmann) at Kn = 0.1 are in close agreement with each other. However, at Kn = 0.01, there is a large difference between the solutions based on Navier-Stokes and Burnett equations with those based on the DSMC and Boltzmann solver; however the N.S. and Burnett solutions agree with each other and the DSMC and Boltzmann solutions are in close agreement.
UR - http://www.scopus.com/inward/record.url?scp=34250893316&partnerID=8YFLogxK
U2 - 10.2514/6.2007-205
DO - 10.2514/6.2007-205
M3 - Conference contribution
AN - SCOPUS:34250893316
SN - 1563478900
SN - 9781563478901
T3 - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
SP - 2370
EP - 2385
BT - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 45th AIAA Aerospace Sciences Meeting 2007
Y2 - 8 January 2007 through 11 January 2007
ER -