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SIMULATION OF A TURBULENT FLOW IN A ROTATING PIPE USING THE STRUCTURE-BASED MODEL

Svetlana V. Poroseva
School of Computational Science, Florida State University Tallahassee 32306-4120, USA; Department of Mechanical Engineering University of New Mexico Albuquerque, New Mexico, 87131-0001, U.S.A.

Stavros C. Kassinos
Department of Mechanical Engineering Stanford University Stanford, California 94305 USA; Department of Mechanical and Manufacturing Engineering, Computational Sciences Laboratory, UCY-COMPSCI University of Cyprus, Nicosia, Cyprus

Carlos A. Langer
Department of Mechanical Engineering Stanford University Stanford, California 94305 USA; Department of Mechanical and Manufacturing Engineering, University of Cyprus Nicosia 1678, Cyprus

William C. Reynolds
Department of Mechanical Engineering Stanford University Stanford, California 94305 USA

Abstract

In the present work, the structure-based model (SBM) was evaluated in a turbulent flow in a cylindrical pipe rotating around its longitudinal axis. It was found that the SBM is able to predict the flow accurately at various Reynolds numbers and under stronger rotation than what is possible with the Reynolds stress transport models (RSTMs). In a fully developed pipe flow, the SBM, being a linear model, slightly improves the profiles obtained with the non-linear RSTM (Speziale et al., 2000). However, like the RSTMs do, the SBM significantly overpredicts the turbulent kinetic energy level in this part of flow in comparison with the results of experiments.