Turbulent flow over an axisymmetric body with annular cavity

10th International Conference on Aerophysics and Physical Mechanics of Classical and Quantum Systems

物理学;力学

Ivanov, I.E.^2,3 ; Kryukov, I.A.^1,3 ; Larina, E.V.^3 ; Glushko, G.S.^1

A. Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, Vernadsky Prospect 101(1), Moscow

119526, Russia^1

Lomonosov Moscow State University, Moscow

119991, Russia^2

Moscow Aviation Institute (National Research University), Moscow

121993, Russia^3

关键词: Annular cavity;    Axisymmetric bodies;    Cavity depth;    Dynamic hysteresis;    Experimental conditions;    Flow type;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/815/1/012017/pdf
DOI  :  10.1088/1742-6596/815/1/012017

学科分类：力学，机械学

来源: IOP

【 摘 要 】

The paper concerns the numerical simulation of turbulent flow over axisymmetric body with an annular cavity. The influence of the ratio of the length to the cavity depth on the flow structure in the cavity was numerically studied in the case of supersonic flow. The open or closed type of the flow was obtained depending on the ratio of the length to the cavity depth. Comparison with experimental data [9, 10, 13] shows a good agreement between calculated and experimental results. The phenomenon of gas dynamic hysteresis for the implementation of the open - closed flow type studied experimentally in [10] was numerically reproduced. Also it has been shown that experimental conditions [13] also may cause this type of hysteresis.