Synthesis of homogeneous anisotropic turbulent fields with prescribed second-order statistics by the random spots method

被引：24

作者：

Kornev, Nikolai ^{[1
]}

Kroeger, Hannes ^{[1
]}

Hassel, Egon ^{[1
]}

机构：

[1] Univ Rostock, Inst Tech Thermodynam, Rostock, Germany

来源：

COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING | 2008年 / 24卷 / 10期

关键词：

turbulence; LES; DNS; inflow generator;

D O I：

10.1002/cnm.1009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The problem of synthesis of homogeneous anisotropic turbulent fields with prescribed autocorrelation functions is solved using the method of random spots method (Commun. Numer Meth. Engng 2007; 23:35-43). Every spot has an inner distribution f of a velocity component. The resulting velocity field is found as a sum of contributions from all spots. The inner distribution f is found from the condition that the resulting field has the prescribed statistical properties. The paper presents analytical solutions for f in the case of homogeneous turbulent fields. A numerical solution for the inhomogeneous case is discussed in (Commun. Numer Meth. Engng 2007; 23:35-43). Copyright (C) 2007 John Wiley & Sons, Ltd.

引用

页码：875 / 877

页数：3

共 3 条

[1] A digital filter based generation of inflow data for spatially developing direct numerical or large eddy simulations
Klein, M
Sadiki, A
Janicka, J
[J]. JOURNAL OF COMPUTATIONAL PHYSICS, 2003, 186 (02) : 652 - 665
[2] Method of random spots for generation of synthetic inhomogeneous turbulent fields with prescribed autocorrelation functions
Kornev, N.
Hassel, E.
[J]. COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING, 2007, 23 (01): : 35 - 43
[3] Kornev N., 2003, SCHIFFBAUFORSCHUNG, V42, P35

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