DNS and Experiment of a Turbulent Channel Flow with StreamwiseRotation - Study of the Cross Flow Phenomena |
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| Authors: | Tanja Weller Martin Oberlack Ingo Recktenwald Wolfgang Schröder |
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| Institution: | 1. Fluid- and Hydromechanics Group, Technische Universität Darmstadt, Petersenstraße 13, 64287 Darmstadt, Germany;2. Chair of Fluid Mechanics and Institute of Aerodynamics, RWTH Aachen, Wüllnerstr. zw. 5 u. 7, 52062 Aachen, Germany |
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| Abstract: | Modelling of rotating turbulent flows is a major issue in engineering applications. Intensive research has been dedicated to rotating channel flows in spanwise direction such as by 1], 2] to name only two. In this work a turbulent channel flow rotating about the streamwise direction is presented. The theory is based on the investigations of 4] employing the symmetry theory. It was found that a cross flow in the spanwise direction is induced. A series of direct numerical simulations (DNS) at different rotation numbers is carried out to examine these effects. Further, the results of the DNS are compared to the measuremets of a corresponding experiment. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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