Hypersonic Intake Starting Characteristics–A CFD Validation Study

Defence Science Journal

Soumyajit Saha¹  Debasis Chakraborty¹ 

[1] Defence Research & Development Laboratory, Hyderabad

关键词: Numerical simulation;    hypersonic intake;    computational fluid dynamics;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

Numerical simulation of hypersonic intake starting characteristics is presented. Three dimensional RANS equations are solved alongwith SST turbulence model using commercial computational fluid dynamics (CFD) software. Wall pressure distribution and intake performance parameters are found to match well with experimental data for different free stream Mach number in the range of 3-8. The unstarting of the intake is traced from the sudden drop of mass capture ratio. Wall condition (adiabatic or isothermal) is seen to have pronounced effect in estimating the performance parameters in the intake. The computed unstarting Mach number is seen to be higher for adiabatic condition compared to isothermal condition. For unstarting case, large separation bubble is seen near the entrance of the intake, which is responsible for expulsion of the shock system out of the intake. Defence Science Journal, 2012, 62(1), pp.147-152 , DOI:http://dx.doi.org/10.14429/dsj.62.1340

【 授权许可】

Unknown