%0 Conference Proceedings
%4 sid.inpe.br/mtc-m19/2011/01.04.11.52
%2 sid.inpe.br/mtc-m19/2011/01.04.11.52.07
%T Thermal non-equilibrium effects on the flow field structure of hypersonic backward-facing step flow
%D 2010
%A Leite, P. H. M.,
%A Santos, W. F. N.,
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%B Iberian-Latin American Congress On Computational Methods In Engineering, (CILAMCE 2010).
%C Buenos Aires, Argentina
%8 15-18 nov.
%I Asociación Argentina de Mecánica Computacional
%J Buenos Aires
%P 4935-4953
%S Proceedings
%K DSMC, Hypersonic Flow, Rarefield Flow, Non-Equilibrium Effects, Backward-Facing Step, Reentry.
%X An exploratory computational investigation was made on backward-facing steps in a rarefied hypersonic flow. The effect of the step back-face height on the thermal non-equilibrium was examined by employing the Direct Simulation Monte Carlo (DSMC) method. Results for the non-equilibrium between rotational temperature, vibrational temperature, parallel temperature, normal temperature, and translational temperature were presented and discussed at length. Parallel temperature and normal temperature are kinetic temperatures associated with x and y coordinate directions in the flowfield. Results showed that the flowfield is in thermal non-equilibrium in the boundary layer and in the shock-wave layer. In contrast, thermal equilibrium was verified at the vicinity of the step base. It was also found that entropy generation regions are related to the thermal non-equilibrium regions in the flowfield.
%@language en
%3 Leite_Thermal.pdf