摘要
发展耦合辐射的三维热化学非平衡流场计算方法,可用于非结构网格.采用Jameson有限体积法求解耦合辐射源项的三维N-S方程.辐射源项通过求解辐射输运方程(Radiative Transport Equation RTE)获得.在空间方向上离散后,采用有限体积法求解辐射输运方程.化学模型包含11个组元,20个化学反应.采用该数值方法计算MUSES-C模型在速度为11.6 km.s-1时的绕流流场及前驻点处的辐射热流密度.并通过对比,分析热辐射对流场的影响.
A numerical method applicable to unstructured mesh is proposed to compute 3D hypersonic ionized and radiating flowfields in thermo-chemical nonequilibrium. The flowfield is described with multi-specy N-S equations. The chemical model includes 11 species（ 02, N2, O,N, NO, NO^＋ , N^＋ , O^＋ , N^2＋ , O2^＋, e- ） and 20 reactions. For thermal nonequilibrium effect, a two temperature model is considered. Radiation transfer equation （RTE） is solved with finite volume method. Numerical result on MUSES-C is shown and compared with referenced data. Influence of radiation on flowfield is discussed.
出处
《计算物理》
EI
CSCD
北大核心
2008年第4期421-426,共6页
Chinese Journal of Computational Physics
关键词
计算流体力学
热辐射
热化学非平衡
computational fluid dynamics
radiation
thermo-chemical nonequilibrium flow
