Mathematical modelling of a single supersonic jet impingement with a flat obstacle

16th International Conference of Students and Young Scientists "Prospects of Fundamental Sciences Development"

自然科学（总论）

Kagenov, A.M.^1 ; Kostyushin, K.V.^1 ; Kotonogov, V.A.^1 ; Pomiluyko, A.S.^1 ; Aligasanova, K.L.^1 ; Burgomistrenko, R.Yu.^1 ; Eremin, I.V.^1

Research Institute of Applied Mathematics and Mechanics, Tomsk State University, 36 Lenin Avenue, Tomsk

634050, Russia^1

关键词: Comparison result;    Godunov scheme;    Nozzle exits;    Numerical results;    OpenFOAM;    PISO algorithm;    Rarefied atmospheres;    Supersonic jets;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/597/1/012076/pdf
DOI  :  10.1088/1757-899X/597/1/012076

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

In this paper the mathematical modeling of the interaction of a single supersonic jet with a flat obstacle in a rarefied atmosphere and Mach numbers at the nozzle exit 4 are considered. Mathematical modeling using free OpenFOAM-Extended software and authors' program are done. Comparison of calculation methods: PISO algorithm, Rusanov and Godunov schemes was carried out. The comparison results show a qualitative coincidence in the shape of the supersonic jet, wall jet and the system of shock waves. But the numerical results are quantitatively different, pressure on flat obstacle varied within 7-14 kPa. The peak of pressure is on the periphery for results of sonicFoam and dbnsFoam. For all solvers average pressure at axis of jet is 8 kPa and the first barrel of wall jet is started about at 0.4 meter from axis was obtained.