再入三维高超声速粘性流场的数值模拟  

Numerical simulation of hypersonic flow field around the reentry vehicle

作　　者：张志成[1] 陈伟芳[1] 石于中[1] 吴其芬[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073

出　　处：《固体火箭技术》2003年第2期23-26,共4页Journal of Solid Rocket Technology

摘　　要：基于三维可压Favre质量加权平均N S方程,采用B L湍流模型模拟了高超声速条件下,球头双锥再入体周围的流场特征。利用一种改进的时间、空间二阶精度的NND格式,再现了超声速/高超声速条件下再入体周围的复杂流动现象,分析、对比了层流和湍流流场流动现象的差别。The hypersonic flow field around the reentry body is investigated by solving the 3D compressible Favre mass weightaveraged NavierStokes equations, in which the BL turbulent model is also incorporated. Utilizing an extended time/spatial second order NND scheme, the complicated flow phenomena around the reentry body are reproduced. Finally, the differences between laminar flow and turbulent flow are analyzed by comparing the calculated results without/with the BL turbulent model.

关 键 词：再入体 高超声速 粘性流场 数值模拟 大攻角 机动飞行 

分 类 号：V430[航空宇航科学与技术—航空宇航推进理论与工程]