Development of Flow over Blunt-Nosed Slender Bodies at Transonic Mach Numbers

15th Asian Congress of Fluid Mechanics

物理学;力学

Yanamashetti, Gireesh^1 ; Suryanarayana, G.K.^1 ; Mukherjee, Rinku^2

Dept. of Applied Mechanics, Indian Institute of Technology, Madras

600036, India^1

National Aerospace Laboratories, Bangalore

560017, India^2

关键词: Commercial packages;    Flow over a cylinder;    Fluent 6.3;    Pressure port;    Shield configuration;    Slender bodies;    Spatial resolution;    Transonic Mach Numbers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/822/1/012071/pdf
DOI  :  10.1088/1742-6596/822/1/012071

学科分类：力学，机械学

来源: IOP

【 摘 要 】

Comparisons of the development of flow over a cylinder with a 20° cone nose and a cylinder with an ogive nose, which represent typical heat-shield configurations are studied using CFD and experiments at transonic Mach numbers. The Cpplots are studied to locate expansion or separation. Experiments are carried out at M = 0.8, 0.9, 0.95 and 1.1 and Re ≈ 2.45 × 106. Computations are carried out using the commercial package, FLUENT 6.3. Inadequate spatial resolution of pressure ports in experiments as well as limitations of the CFD tool result in some differences in experimental and CFD results.