Modeling for large eddy simulation of complex turbulent flow based on dynamic subgrid scale model

基于动态亚网格尺度模型的复杂湍流大涡模拟建模

• 批准号: 10650160
• 负责人: TANIGUCHI Nobuyuki
• 金额: $ 2.24万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650160/
• 关键词: Computational Fluid Dynamics; Turbulence; Large eddy simulation; Subgrid model; Combustion flow; Multiphase flow; Finite element method; Finite difference method

This Project aimed to develop the turbulent, modeling for the large eddy simulation based on a dynamic sub-grid model proposed by Germano which were evaluated only in the fundamental turbulence phenomena.The following objects were investigated ;a) Development of a dynamic subgrid model for the premixed turbulent combustion based on the flamelet concept for applting to a gas-turbine combustor flows.b) Development of a dynamic subgrid model for the particle-laden flow by considering the two way coupling between distributed particles and turbulence fluctuation.c) Development of a new concept subgrid model by considering the viscous dissipation effect and the grid dependency in grid-scale solution.d) Modification of a dynamic subgrid model for the external forced flow fields by considering the anisotroic effect of turbulence.e) Development of the high accurate numerical schemes for the finite element method and the finite difference method considering the conservation characteristics in the discretized formulation.f) Numerical evaluation of the affects caused by the additional filtering operation and the upwind schemes introduced for the compress of the numerical instability.

本项目的目的是在Germano提出的动态亚网格模型的基础上发展用于大涡模拟的湍流模型，该模型仅在基本湍流现象中进行评估。a）基于小火焰概念的预混合湍流燃烧的动态亚网格模型的开发，用于燃气涡轮燃烧室流。B）发展了一个考虑颗粒分布和湍流脉动双向耦合的含颗粒流动的动态亚网格模型。c）发展了一个考虑粘性耗散效应和网格尺度解中的网格依赖性的新概念亚网格模型。d）通过考虑湍流的各向异性效应，对外部强迫流场的动态亚网格模型进行了修改。e）考虑离散公式中的守恒特性，为有限元法和有限差分法开发了高精度数值格式。f）数值计算了附加滤波操作和为压缩数值不稳定性而引入的迎风格式所造成的影响。

项目成果

N. Taniguchi, T. Kobayashi: "Large Eddy Simulation of Turbulent Separated Flows"Proc. China-Japan Workshop on Turbulent Flow. 1-11 (1998)

N. Taniguchi，T. Kobayashi：“湍流分离流的大涡模拟”Proc。

T. Kobayashi, N. Taniguchi, T. Kogaki, N. Park: "Large Eddy Simulation for Turbulent Wake of Bluff Body"Proc. '98 JSAE Spring Convention Proceedings. 137-140 (1998)

T. Kobayashi、N. Taniguchi、T. Kogaki、N. Park：“布拉夫体湍流尾流的大涡模拟”Proc。

T. Kogaki, T. Kobayashi, N. Taniguchi: "Proper Finite Difference Schemes for Simulation of Incompressible Turbulent Flow in Generalized Curvilinear Coordinates. (1ィイD1stィエD1 Report Analytical Conservative, Properties of Coordinate Transformed Basic Equati

T. Kogaki、T. Kobayashi、N. Taniguchi：“广义曲线坐标系中不可压缩湍流模拟的正确有限差分格式。

M.tubokura,T.Kobayashi,N.Taniguchi,T.Kogaki: "Subgrid Scale modeling for the turblence in rotating reference frames" Proc. CFD for Wind Climinate in Cities. 290-299

M.tubokura，T.Kobayashi，N.Taniguchi，T.Kogaki：“旋转参考系中湍流的子网格尺度建模”Proc。

谷口伸行、小林敏雄、M.Rokni 高相〓: "ガスタービン燃焼器内の乱流LES" 第12回数値流体力学シンポジウム講演論文集. 65-66 (1998)

Nobuyuki Taniguchi、Toshio Kobayashi、M.Rokni Kosei：“燃气轮机燃烧室中的湍流 LES”第 12 届计算流体动力学研讨会论文集 65-66 (1998)。