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۱Turbulent Plane Impinging Jet–Physical Insight and Turbulence Modeling
اطلاعات انتشار: Journal Of Applied Fluid Mechanics، نهم،شماره۳، ۲۰۱۶، سال
تعداد صفحات: ۷
A 3D numerical simulation using large eddy simulation (LES) method is performed for a submerged turbulent water slot jet impinging normally on a flat plate with a nozzle–to–plate distance of 10 jet width and a Reynolds number of 16000 and the results are compared with the existing experimental data. The numerical platform is an open source CFD code based on the field operation and manipulation C++ class library for continuum mechanics (OpenFOAM) and is used to simulate the flow and represent the mean and instantaneous flow field characteristics. Also, simulations are performed with two different subgrid–scale (SGS) models, one–equation based subgrid–scale model and localized dynamic smagorinsky model. Evaluating the different subgrid–scale (SGS) models, a priori and a posteriori test is done. Comparison between results obtained using the SGS models and experimental data shows that the simulation results using localized dynamic Smagorinsky model are more compatible with the experimental data compared with those that obtained from the kinetic energy one–equation model especially in regions close to the impingement wall and in free jet region.
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