%0 Conference Proceedings
%4 dpi.inpe.br/plutao/2012/06.21.20.47.13
%2 dpi.inpe.br/plutao/2012/06.21.20.47.14
%F lattes: 4859685163568596 2 LeiteSant:2012:CoImAe
%T Compressibility Impact on the Aerodynamic Surface Quantities of Rarefied Hypersonic Flow over Forward-Facing Steps
%D 2012
%A Leite, Paulo H. Mineiro,
%A Santos, Wilson Fernando Nogueira dos,
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@electronicmailaddress phmineiro@lcp.inpe.br
%@electronicmailaddress wilson@lcp.inpe.br
%B Brazilian Congress of Thermal Sciences and Engineering, 14 (ENCIT).
%C Rio de Janeiro, RJ
%8 Nov 18-22, 2012
%S Proceedings
%K DSMC, hypersonic flow, rarefied flow, forward-facing step, compressibility effect.
%X Compressibility effects on hypersonic flow over forward-facing steps have been numerically investigated by using the Direct Simulation Monte Carlo (DSMC) method. The work is motivated by interest in assessing the impact of surface discontinuities on hypersonic configurations in the transition flow regime. The computations were carried out by assuming step frontal-face height from 3 to 5 millimeters and freestream Mach number from 5 to 25 at zero-degree angle of incidence. The results highlight some significant differences on the aerodynamic surface quantities due to variations on the step frontal-face height and on the freestream Mach number. Interesting features observed on pressure, skin friction, and heat transfer coefficients showed that small frontal-face thickness, compared to the freestream mean free path, still has important effects on these properties for the freestream Mach number range investigated.
%@language en
%3 Leite_compressibility.pdf
%O Setores de Atividade: Atividades profissionais, científicas e técnicas.