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ANALYSIS OF THE EFFECTS OF ROTATION ON AN AXISYMMETRIC WALL JET

Remi Manceau
Institute Pprime, Dept. Fluid flow, heat transfer and combustion, CNRS-Univ. of Poitiers-ENSMA, France; Lab. de mathematiques et de leurs applications (LMA) CNRS-Universite de Pau et des pays de I'Adour IPRA, avenue de I'universite 64013 Pau, France; Inria Bordeaux-Sud-Ouest, project-team CAGIRE

Rodolphe Perrin
Institut Pprime, UPR CNRS 3346, ENSMA, Universite de Poitiers, BP 40109, 86961 Futuroscope Chasseneuil Cedex, France

Muhamed Hadziabdic
Faculty of Engineering and Natural Sciences, International University of Sarajevo, Bosnia and Herzegovina; and Department of Applied Physics, Delft University of Technology, Prins Bernhardlaan 6, 2628 BWDelft, The Netherlands

Sofiane Benhamadouche
Fluids Mechanics Energy and Environment Dept., EDF R&D, France

要約

The case of a turbulent round jet impinging perpendicularly onto a rotating, heated disc is investigated, aiming at understanding the mechanisms at the origin of the influence of rotation on the radial wall jet and associated heat transfer. The present study is based on the comple-mentary use of an analysis of the order of magnitudes of the terms of the mean momentum and Reynolds stress transport equations, available experiments and dedicated Reynolds-Averaged Navier−Stokes (RANS) computations with refined turbulence models. The analysis identifies a scenario for the appearance of rotational effects when the rotation rate is gradually increased.