Abstract
A parameter estimation algorithm is introduced and used to determine the parameters in the standardk-∈ two equation turbulence model (SKE). It can be found from the estimation results that although the parameter estimation method is an effective method to determine model parameters, it is difficult to obtain a set of parameters for SKE to suit all kinds of separated flow and a modification of the turbulence model structure should be considered. So, a new nonlineark-∈ two-equation model (NNKE) is put forward in this paper and the corresponding parameter estimation technique is applied to determine the model parameters. By implementing the NNKE to solve some engineering turbulent flows, it is shown that NNKE is more accurate and versatile than SKE. Thus, the success of NNKE implies that the parameter estimation technique may have a bright prospect in engineering turbulence model research.
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References
Shi XG. Turbulence. Tianjin: Tianjin University Press, 1994 (in Chinese)
Cai JS. System Identification of Flight Vehicles. Beijing: Astronautical Press, 1995 (in Chinese)
Zhu GL, Kronast M. The calculation of ground effect on a car flow field using two dimensional NS equations.Acta Aerodynamica Sinica, 1993, 11(1): 22–32
Goldsmith M. Comparisons of Turbulent Flow Calculations with Experiments. WAPD-TM-1473 (also DE-81-031930) report, 1981
Kim J, Kline SJ, Johnston JP. Investigation of a reattaching turbulence shear layer: Flow over a backward-facing step.Journal of Fluids Engineering, 1980, 102: 302–308
Driver DM, Seegmiller HL. Features of a reattaching turbulent shear layer in divergent channel flow.AIAA J, 1985, 23(2): 163–171
Gatski TB, Speziale CG. On explicit algebraic stress models for complex turbulent flows.J Fluid Mech, 1993, 254: 59–78
Vogel JC, Eaton JK. Combined heat transfer and fluid dynamics measurements downstream of a backward-facing step.Journal of Heat Transfer, 1985, 107: 922–929
Durst F, Rastogi AK. Theoretical and Experimental Investigation of Turbulent Flows with Separation. In: Turbulent Shear Flow I, ed by Durst F et al., Springer-Verlag, 1979, 208–219
Guilmineau E, Piquet J, Queutey P. Two-dimensional turbulent viscous flow simulation past airfoils at fixed incidence.Computers & Fluids, 1997, 26(2): 135–162
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Weiqi, Q., Jinshi, C. Parameter estimation of engineering turbulence model. Acta Mech Sinica 17, 302–309 (2001). https://doi.org/10.1007/BF02487458
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DOI: https://doi.org/10.1007/BF02487458