@Article{PalhariniSant:2019:ImLeRa,
author = "Palharini, Rodrigo C. and Santos, Wilson Fernando Nogueira dos",
affiliation = "{Federico Santa Maria Technical University} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "The impact of the length-to-depth ratio on aerodynamic surface
quantities of a rarefied hypersonic cavity flow(",
journal = "Aerospace Science and Technology",
year = "2019",
volume = "88",
pages = "110--125",
month = "May",
keywords = "Cavity, DSMC, hypersonic flow, rarefied flow, reentry vehicle.",
abstract = "A computational investigation has been carried out to examine a
non-reacting rarefied hypersonic flow over cavities by employing
the Direct Simulation Monte Carlo (DSMC) method. The work focuses
on the effects on the aerodynamic surface quantities due to
variations in the cavity length-to-depth (L/H) ratio. The results
highlight the sensitivity of the heat transfer, pressure and skin
friction coefficients due to changes to the cavity L/H ratio. The
L/H ratio ranged from 1 to 4, which corresponds to the transition
flow regime based on an overall Knudsen number Kn L . The analysis
showed that the aerodynamic quantities acting on the cavity
surface rely on the L/H ratio. It was found that pressure load and
heating load to the cavity surfaces presented peak values along
the forward face, more precisely in the vicinity of the cavity
shoulder. Moreover, these loads are much higher than those found
in a smooth surface, for the conditions investigated.",
doi = "10.1016/j.ast.2019.03.007",
url = "http://dx.doi.org/10.1016/j.ast.2019.03.007",
issn = "1270-9638",
language = "en",
urlaccessdate = "27 abr. 2024"
}