A CHALLENGING TEST CASE FOR LARGE EDDY SIMULATION: HIGH REYNOLDS NUMBER CIRCULAR CYLINDER FLOW
By Michael Breuer. Proceeding of First Symposium on Turbulence and Shear Flow Phenomena, 2000
415 citations recorded by the source corpus.
Abstract A thorough numerical investigation of high Reynolds number ( Re =140,000) circular cylinder flow was performed based on large eddy simulation (LES). The objective was to evaluate the applicability of LES for practically relevant high- Re flows and to investigate the influence of subgrid scale modeling and grid resolution on the quality of the predicted results. Because the turbulent von Karman vortex street past circular cylinders involves most of the characteristic features of technical applications, it is an ideal test case for this purpose. Based on a parallelized finite-volume Navier–Stokes solver, computations were carried out on a series of grids applying both the Smagorinsky and the dynamic subgrid scale model. The simulations yielded information on the time-averaged flow field, the resolved Reynolds stresses and integral parameters such as drag coefficient, recirculation length and Strouhal number. The results were analyzed in detail and compared with experimental data. In general, the LES results agreed fairly well with the experimental data, especially in the near wake. Owing to the coarse resolution in the far wake, larger deviations were observed here. As expected, the importance of the subgrid scale model significantly increased for the high- Re case in comparison with a low- Re case predicted earlier. A critical issue for LES is grid refinement which did not automatically lead to an improved agreement between the predicted results and the experimental measurements. Possible explanations are offered in the paper.
Subfields: Computational Mechanics, Environmental Engineering
View Paper: https://www.semanticscholar.org/paper/d92126b936eec7024ac63758c4ff5960306b61f3
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Citations in the corpus
- Reynolds-stress-constrained large-eddy simulation of wall-bounded turbulent flows (2012, result): “…carried out for flow over a circular cylinder, which is a simple but typical test case to validate an SGS model, and has been frequently investigated by many other authors (Breuer 1998; Travin et al. 1999; Breuer 2000; Kravchenko & Moin 2000; Strelets 2001; Travin et al. 2002; Spalart et al. 2006).”
- NUMERICAL SIMULATION OF THE FLOW AROUND A CIRCULAR CYLINDER AT HIGH REYNOLDS NUMBER (2003, methodology): “Recently an LES study has been conducted by Breuer (2000) at a high sub-critical Reynolds number of 1.”
- Numerical simulation of an oscillating cylinder in a cross-flow at low Reynolds number: Forced and free oscillations (2009, methodology): “A lot of studies, involving Reynolds Averaged Navier–Stokes (RANS) methods [39,18], Large Eddy Simulations (LES) [6,32,2,15], Direct Numerical Simulations (DNS) [11], using finite volume or finite element [3,29,27] approximations to solve the Navier–Stokes equations, can be found in the literature f”
- A combined direct numerical simulation–particle image velocimetry study of the turbulent near wake (2006, neutral): “Breuer (2000) investigated the cylinder flow at Re = 140 000 in order to evaluate the applicability of LES to high-Reynoldsnumber flows.”
- Detached-Eddy Simulations Past a Circular Cylinder (2000, methodology): “In a recent LES study it was found “astonishing” that grid refinement did not always improve results, where “improve” meant “bring closer to experiments” [ 3 ].”
- Strategies for turbulence modelling and simulations (2000, result): “For instance Breuer was disappointed with the results of both SGS-model improvements, and grid re®nement (Breuer, 1999).”