Abstract
ABE-KONDOH-NAGANO, ABID, YANG-SHIH and LAUNDER-SHARMA low-Reynolds number turbulence models were applied to simulating unsteady turbulence flow around a square cylinder in different phases flow field and time-averaged unsteady flow field. Meanwhile, drag and lift coefficients of the four different low-Reynolds number turbulence models were analyzed. The simulated results of YANG-SHIH model are close to the large eddy simulation results and experimental results, and they are significantly better than those of ABE-KONDOH-NAGANO, ABID and LAUNDER-SHARMR models. The modification of the generation of turbulence kinetic energy is the key factor to a successful simulation for YANG-SHIH model, while the correction of the turbulence near the wall has minor influence on the simulation results. For ABE-KONDOH-NAGANO, ABID and LAUNDER-SHARMA models satisfactory simulation results cannot be obtained due to lack of the modification of the generation of turbulence kinetic energy. With the joint force of wall function and the turbulence models with the adoption of corrected swirl stream, flow around a square cylinder can be fully simulated with less grids by the near-wall.
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Foundation item: Project(2006BAJ04B04) supported by the National Science and Technology Pillar Program in the Eleventh Five-year Plan Period; Project(2006AA05Z229) supported by the National High Technology Research and Development Program of China; Project supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry; Project(06wk3023) supported by Hunan Science and Technology Office
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Zhang, L., Zhou, Jl., Chen, Xc. et al. Numerical simulation of flow around square cylinder using different low-Reynolds number turbulence models. J. Cent. South Univ. Technol. 15, 564–568 (2008). https://doi.org/10.1007/s11771-008-0106-8
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DOI: https://doi.org/10.1007/s11771-008-0106-8