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Direct numerical simulation of turbulent wake behind two intersecting plates

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1620
pages 1580-1584

F. Hoseini Dadmarzi
Department of Marine Technology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway

Vagesh D. Narasimhamurthy
GexCon AS, P.O. Box 6015, Postterminalen, 5892 Bergen; Fluids Engineering Division, Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway

Helge I. Andersson
Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway

Bjornar Pettersen
Department of Marine Technology, Norwegian University of Science and Technology,NO-7491 Trondheim, Norway

Sinopsis

The wake flow behind two intersecting flat plates forming a cross is studied by means of direct numerical simulation (DNS). In the current case the Reynolds number based on the plate width, d, and the inflow velocity, U0, is 1000. The structure is in one plane and placed normal to the inflow. The instantaneous velocity field as well as Reynolds-averaged statistical quantities are investigated in order to show the three-dimensional wake flow complexity at the intersection. The wake behind the branches away from the center part of the body, which shows similarities to the wake behind a single flat plate, is evaluated and compared with the previous studies.

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