Axisymmetric and three-dimensional flow simulation of a mixed compression supersonic air intake

dc.contributor.authorSoltani, M.R.en
dc.contributor.authorAbedi, M.en
dc.contributor.authorAskari, R.en
dc.contributor.authorSepahi, Younsi J.en
dc.date.accessioned2017-09-19T12:48:27Z
dc.date.available2017-09-19T12:48:27Z
dc.date.issued2017en
dc.descriptionPapers presented at the 13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Portoroz, Slovenia on 17-19 July 2017 .en
dc.description.abstractThe flow of an axisymmetric supersonic mixed compression air intake has been simulated numerically in order to investigate the effects and also the necessity of three-dimensional (3D) modeling. For this purpose, the supersonic intake has been simulated numerically via axisymmetric and 3D CFD solver, solving steady state Reynolds-averaged Navier-Stokes equations along with SST k-ω turbulence model, at free-stream Mach number of 2.0 at zero angle of attack. The grid of the 3D cases was a 14.4-degree sector, instead of a 360-degree domain, with rotational periodic boundary condition for side boundaries. The results show that the static and total pressure distribution almost matches well with experimental data for both the axisymmetric and 3D simulations. If the prediction of performance parameters is the main goal of simulations, it seems that axisymmetric simulation presents adequate accuracy and 3D simulation is not a reasonable choice. 3D numerical simulation results in a more detailed study on supersonic intakes, including shock-boundary layer interaction, the location of terminal shock, and consequent separation point. 3D effects in axisymmetric supersonic intakes in axisymmetric flow condition are not enough strong to affect significantly on the intake performance in all operational condition. However, it seems that these effects play a more important role in critical and weak supercritical condition at steady state operation.en
dc.description.sponsorshipInternational centre for heat and mass transfer.en
dc.description.sponsorshipAmerican society of thermal and fluids engineers.en
dc.format.extent6 pagesen
dc.format.mediumPDFen
dc.identifier.urihttp://hdl.handle.net/2263/62357
dc.language.isoenen
dc.publisherHEFATen
dc.rightsUniversity of Pretoriaen
dc.subjectAxisymmetricen
dc.subjectThree-dimensional flowen
dc.subjectCompression supersonic air intakeen
dc.titleAxisymmetric and three-dimensional flow simulation of a mixed compression supersonic air intakeen
dc.typePresentationen

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