Nature of Turbulence in complex separated flows investigated through Anisotropy Invariant Mapping. | [Proceedings 6th International Bhurban Conference on Applied Sciences and Technology • 2009]

Author(s):

1. Uddin N.: Mechanical Engineering Department, NEDUET, Karachi, Pakistan

2. Uddin N.: Institute of Aerospace Thermodynamics, Universitat Stuttgart, Stuttgart, Germany

3. S. O. Neumann: Institute of Aerospace Thermodynamics, Universitat Stuttgart, Stuttgart, Germany

4. B. Weigand: Institute of Aerospace Thermodynamics, Universitat Stuttgart, Stuttgart, Germany

Abstract:

The flow over a backward-facing step is a standard benchmark case in CFD. Although simple in configuration, the backward facing step problem provides a number of ways in understanding complex flows. The Large Eddy Simulation (LES) is a promising technique for complex flow simulations, as the known turbulence models based on the Reynolds Averaged Navier Stokes (RANS) equations are limited. In this paper the flow over a backward facing step is simulated at Re =5100. The earlier flow field predictions for this problem provide a motivation to investigate the complex flow further in detail via the anisotropy invariant theory of Lumley & Newman [15].

Page(s): 266-274

DOI: DOI not available

Published: Journal: Proceedings 6th International Bhurban Conference on Applied Sciences and Technology , Volume: 1, Issue: 0, Year: 2009

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