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Axisymmetric and three-dimensional flow simulation of a mixed compression supersonic air inlet
, Article Propulsion and Power Research ; Volume 9, Issue 1 , 2020 , Pages 51-61 ; Askari, R ; Sepahi Younsi, J ; Soltani, M. R ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
The flow through an axisymmetric supersonic mixed-compression air inlet has been simulated numerically to investigate the effects and the necessity of the three-dimensional (3D) modeling in comparison with the axisymmetric one. For this purpose, a supersonic inlet has been simulated numerically via axisymmetric and 3D CFD solvers, using the steady state Reynolds-averaged Navier-Stokes equations along with the SST k-ω turbulence model, for a free-stream Mach number of 2.0 and at zero degrees angle of attack. The grid for the 3D cases was a 14.4-degree sector, instead of a 360-degree domain one, with rotational periodic boundary condition for the side boundaries. The results show that both...
Two-and three-dimensional numerical simulations of supersonic ramped inlet
, Article Scientia Iranica ; Volume 25, Issue 4 , 2018 , Pages 2198-2207 ; 10263098 (ISSN) ; Soltani, M.R ; Sharif University of Technology
Sharif University of Technology
2018
Abstract
Two-dimensional (2D) and three-dimensional (3D) numerical simulations of an external compression supersonic ramped inlet are presented for a free stream Mach number of 2. A comparison made between numerical results and experimental data showed that multi-block structured gird using standard k - " turbulence model gives acceptable results. The shape of present inlet diffuser was transformed gradually into a circular one to encompass the Aerodynamic Interface Plane (AIP). It was observed that the 3D simulation predicted a more accurate static pressure distribution during the length of supersonic inlet and total pressure distribution at the AIP in comparison with the 2D one. Further, a better...