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Flow and Heat Transfer in a Wall-Bounded Pin Matrix

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1600
pages 1557-1567

L. Paniagua
Heat and Mass Transfer Technological Center, Polytechnical University of Catalonia (UPC) Colom 11, 08222, Terrassa, Barcelona, Spain

C. Oliet
Heat and Mass Transfer Technological Center, Polytechnical University of Catalonia (UPC) Colom 11, 08222, Terrassa, Barcelona, Spain

O. Lehmkuhl
Heat and Mass Transfer Technological Center, Polytechnical University of Catalonia (UPC) Colom11, 08222, Terrassa, Barcelona, Spain; Termo Fluids, S.L., Magi Colet, 8, 08204 Sabadell (Barcelona), Spain

C. D. Perez-Segarra
Heat and Mass Transfer Technological Center (CTTC) Universitat Politecnica de Catalunya - BarcelonaTech (UPC) Colom 11, 08222 Terrassa, Barcelona, Spain

Sinopsis

In this paper, three-dimensional turbulent forced convection in a matrix of wall-bounded 8×8 cylindrical pins has been studied. Large Eddy Simulations (LES) with two levels of grid refinement have been performed for three distinct Reynolds numbers (3000, 10000 and 30000). Results are presented and compared with the available experimental [1, 2] and numerical analysis [3]. Two different turbulence models (WALE and QR) are shown on a local row-by-row study. Velocity profiles and pressure coefficient results are comparable with the experiments and show a better performance than previous numerical references. Turbulence characteristics of the flow are well illustrated.

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