A HIGH-ORDER ANISOTROPIC K-ε MODEL AND ITS NUMERICAL INVESTIGATION IN TWO DIMENSIONAL TURBULENT FLOW FIELDS

Liu Zhengxian; Song Baojun; Gu Chuangang; Miao Yongmiao; Su Moming

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A HIGH-ORDER ANISOTROPIC K-ε MODEL AND ITS NUMERICAL INVESTIGATION IN TWO DIMENSIONAL TURBULENT FLOW FIELDS

更新时间：2026-07-07

- A HIGH-ORDER ANISOTROPIC K-ε MODEL AND ITS NUMERICAL INVESTIGATION IN TWO DIMENSIONAL TURBULENT FLOW FIELDS
- Vol. 11, Issue 4, Pages: 393-396(1996)
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- Published：1996
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刘正先, 宋保军, 谷传纲, 苗永森, 苏莫明. 高阶各向异性k－ε模型及在直通道湍流流场中的数值研究[J]. 航空动力学报, 1996, 11(4): 393-396,438-439.

Liu Zhengxian, Song Baojun, Gu Chuangang, et al. A HIGH-ORDER ANISOTROPIC K-ε MODEL AND ITS NUMERICAL INVESTIGATION IN TWO DIMENSIONAL TURBULENT FLOW FIELDS[J]. 1996, 11(4): 393-396.
刘正先, 宋保军, 谷传纲, 苗永森, 苏莫明. 高阶各向异性k－ε模型及在直通道湍流流场中的数值研究[J]. 航空动力学报, 1996, 11(4): 393-396,438-439. DOI：

Liu Zhengxian, Song Baojun, Gu Chuangang, et al. A HIGH-ORDER ANISOTROPIC K-ε MODEL AND ITS NUMERICAL INVESTIGATION IN TWO DIMENSIONAL TURBULENT FLOW FIELDS[J]. 1996, 11(4): 393-396. DOI：

摘要

以各向异性k－ε模型为基础

确定得出新的模型:高阶各向异性k－ε模型(简称MAKE)

MAKE模型的主要特点在于雷诺切应力表达式中出现速度梯度的三次函数。使其适应于强各向异性的湍流流场。应用该模型和标准k-s模型CSKE)、各向异性k－ε模型CAKE)对二维直管湍流流场进行数值分析

与实验数据比较

结果表明

MAKE模型对主流速度场没有更大影响

和另外两种模型一样能较好地与实验值吻合。对雷诺正应力的估测

MAKE模型比SKE和AKE模型更为精确。

Abstract

A new anisotropic K-ε model(MAKE) is deduced and simplified based on the basis of anisotropic K-ε model.It has been applied to numerical analysis of two dimensional turbulent flows.Its main feature is the presence of the first and third order functions of velocity gradient in the Reynolds shear stress formula

so as to be applicable for strong anisotropism of turbulent flow fields.The new coefficients of the MAKE model are analyzed and selected.The straight two dimensional turbulent flows are numerically studied by using MAKE standard K-ε model (SKE) and anisotropic K-ε model (AKE).The numerical results obtained from the three models are compared with previous experimental data.It is shown that the main flow velocity field is predicated by MAKE as well as the other two models

but MAKE is more accurate than SKE to prediction of the Reynolds normal stress.

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Related Institution

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