摘要
由于按强弱两波角接近的方法收敛精度不高,进一步导出直接求解变比热斜冲波接体最大尖劈角与最小马赫数的公式及解法,并用双精度计算机程序作出例题,得出由最大失劈角可反求出原给定马赫数为最小马赫数的满意结果。同时也给出相应定比热k=1.4结果的百分误差。
ince the author's previous method relying on the approach of strongand weak shock angles gives accuracy not high enough, in this paper,original drivationsof formullae and solutions for direct determination of varying specific heat attachedoblique shock's maximum wedge angle and minmum approaching Mach number aregiven.Illustrative examples using double precision programs produce satisfactory raversible solutions of the two parameters,i.e.with either of them given,another couldbe found exactly.Percentage errors of correspondent constant specific heat solutions with k=1.4 arealso given for reference.
出处
《推进技术》
EI
CAS
CSCD
北大核心
1995年第6期11-15,共5页
Journal of Propulsion Technology
关键词
气动热力学
计算流体动力学
斜激波
变比热
Aerothermodynamics,Computational fluid dynamics,Oblique blast,Numerical solution