TY - JOUR
T1 - Air Chemical Non-Equilibrium Effects on the Hypersonic Combustion Flow of RCS with Gaseous Ethylene Fuel
AU - Zhao , Faming
AU - Wang , Jiangfeng
AU - Fan , Xiaofeng
AU - Yang , Tianpeng
JO - Advances in Applied Mathematics and Mechanics
VL - 5
SP - 1261
EP - 1278
PY - 2018
DA - 2018/07
SN - 10
DO - http://doi.org/10.4208/aamm.OA-2017-0321
UR - https://global-sci.org/intro/article_detail/aamm/12598.html
KW - RCS, ethylene-oxygen combustion, air chemical non-equilibrium effects, hypersonic.
AB - <p style="text-align: justify;">In this paper, air chemical non-equilibrium effects on the shock-induced
combustion flow are numerically investigated for a reaction control system (RCS) with
gaseous ethylene fuel by solving multi-component Navier-Stokes (N-S) equations. An
integrated numerical method is developed that considers two different chemical reaction
mechanisms: the high temperature air chemical non-equilibrium reactions and
ethylene-oxygen combustion reactions. The method is independently validated by
two types of reacting flow: the hypersonic air chemical non-equilibrium flow over a
sphere and supersonic ethylene-oxygen combustion flow for a dual combustion chamber.
Furthermore, the mixed reacting flow over a blunt cone with a transverse multi-component
gaseous jet is analyzed in detail. Numerical results indicate that air chemical
non-equilibrium effects could lead to a reduction of the shock detachment distance,
a decrease of the temperature behind the shock wave and a reduction of the combustion
products.</p>