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Mathematical and Computational Applications is published by MDPI from Volume 21 Issue 1 (2016). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on as a courtesy and upon agreement with the previous journal publisher.
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Math. Comput. Appl. 2006, 11(3), 225-234;

Modelling of Effect of Inflow Turbulence on Large Eddy Simulation of Bluff Body Flows

Mersin University, Department of Mechanical Engineering, Çiftlikköy, 33343, Mersin, Turkey
West Virginia University, Department of Mechanical and Aerospace Engineering, Morgantown, WV 26506-6106, USA
Author to whom correspondence should be addressed.
Published: 1 December 2006
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A random flow generation (RFG) algorithm for a previously established large eddy simulation (LES) code is successfully incorporated into a finite element fluid flow solver to generate the required inflow/initial turbulence boundary conditions for the LES computations of viscous incompressible turbulent flow over a nominally twodimensional circular cylinder at Reynolds number of 140,000. The effect of generated turbulent inflow boundary conditions on the near wake flow and the shear layer and on the prediction of integral flow parameters is studied based on long time average results. No-slip velocity boundary function is used but wall effects are taken into consideration with a near wall modelling methodology based on van Driest Damping approach. The numerical results obtained from simulations are compared with each other and with the experimental data for different turbulent inflow boundary conditions to assess the functionality of the RFG algorithm for the present LES code and hence its influence on the vortex shedding mechanism and the resulting flow field predictions.
Keywords: LES method; RFG algorithm; circular cylinder; turbulent wake LES method; RFG algorithm; circular cylinder; turbulent wake
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Tutar, M.; Celik , I.; Yavuz, I. Modelling of Effect of Inflow Turbulence on Large Eddy Simulation of Bluff Body Flows. Math. Comput. Appl. 2006, 11, 225-234.

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