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TURBULENT BUDGETS IN ROTATING PIPES BY DNS

Paolo Orlandi
Department of Mechanics and Aeronautics, "Sapienza" University of Rome, Via Eudossiana 18, 00184 Rome, Italy

David Ebstein
Universita di Roma "La Sapienza" Dipartimento di Meccanica e Aeronautica via Eudossiana 18 00184 Roma Italy

要約

The budgets for the Reynolds stresses are given for a non-rotating and a rotating pipe at high rotation rates. The data have been obtained by fields generated by direct numerical simulations at Re = 4900. Particular emphasis has been devoted to the near wall region since background rotation modifies the wall structures. These budgets are useful to whom is interested to develop new one-point closure turbulence models for rotating flows.