Affiliation of Author(s):航空学院

Journal:MODERN PHYSICS LETTERS B

Key Words:Air chemical non-equilibrium effect hydrogen-air combustion opposing jet hypersonic

Abstract:The air chemical non-equilibrium effect (ACNEE) on hydrogen-air combustion flow fields at Mach number of 10 is numerically analyzed for a semi-sphere with a sonic opposing hydrogen jet. The 2D axisymmetric multi-components N-S equations are solved by using the central scheme with artificial dissipation and the S-A turbulence model. Numerical results show that as compared to the result without ACNEE, the ACNEE has little influence on the structure of flow field, but has a considerable impact on fluid characteristics which reduces the maximum value of mass fraction of water in the flow field and increases the maximum value of mass fraction of water on solid surface, as well as the maximum surface temperature.

ISSN No.:0217-9849

Translation or Not:no

Date of Publication:2018-05-10

Co-author:Zhao, Fa-Ming,Li, Long-Fei

Correspondence Author:WANG Jiangfeng