This paper deals with numerical simulation of the flow around a 1:5 rectangular cylinder. The Unsteady Reynolds-Averaged Navier-Stokes (URANS) and Detached-Eddy Simulation (DES) computational techniques are employed. In the process the influence of various modelling parameters, such as turbulence modelling, and flow parameters, such as Reynolds number and incidence angle, is investigated. Simulations with both stationary and harmonically oscillating body are performed. Validation of computed results with experimental data shows that the URANS-based computational approach is capable of predicting the basic unsteady flow phenomena in the considered cases. These results are further confirmed by the DES method, which provides information about the instantaneous flow variables and offers a deeper insight into the flow physics.
URANS and DES simulation of flow around a rectangular cylinder / Claudio Mannini; Ante Soda; Ralph Voss; Günter Schewe. - STAMPA. - (2007), pp. 36-43. (Intervento presentato al convegno 15th Symposium of the German-Society-for-Aeronautics-and-Astronautics/German-Aerospace-Aerodynamics-Association tenutosi a Technical University of Darmstadt, Darmstadt, GERMANY nel 29 November - 01 December 2006).
URANS and DES simulation of flow around a rectangular cylinder
MANNINI, CLAUDIO;
2007
Abstract
This paper deals with numerical simulation of the flow around a 1:5 rectangular cylinder. The Unsteady Reynolds-Averaged Navier-Stokes (URANS) and Detached-Eddy Simulation (DES) computational techniques are employed. In the process the influence of various modelling parameters, such as turbulence modelling, and flow parameters, such as Reynolds number and incidence angle, is investigated. Simulations with both stationary and harmonically oscillating body are performed. Validation of computed results with experimental data shows that the URANS-based computational approach is capable of predicting the basic unsteady flow phenomena in the considered cases. These results are further confirmed by the DES method, which provides information about the instantaneous flow variables and offers a deeper insight into the flow physics.File | Dimensione | Formato | |
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