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Research of the high precision approach for Computational Fluid Dynamics based on VCAD System

基于VCAD系统的高精度计算流体动力学方法研究

基本信息

批准号：
20560175
负责人：
LEI Kangbin
金额：
$ 3.08万
依托单位：
The Institute of Physical and Chemical Research
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2008
资助国家：
日本
起止时间：
2008 至 2010
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20560175/
关键词：
Computational Fluid Dynamics Cut Cell Method VCADシステム V-Flow3D Kitta Cubeモデル Octree Structure V-DSMC Wind Environment Simulation 数値シミュレーション非圧縮性粘性熱流体 V-Flow 非圧縮性粘性流体

项目摘要

With the extensive application of Computational Fluid Dynamics (CFD) technique in various industries, mesh generation for complex geometry is becoming a bottleneck in CFD practical use. Based on VCAD (Volume CAD) Framework, which is developed at RIKEN Institute for storing shape and material attribute data of geometry, we developed a general flow analysis solver, named as V-Flow3D, for three dimensional incompressible viscous fluid flows and heat transfer problems with arbitrary geometries using unstructured grid method. A novel approach has been proposed to deal with the shape of KittaCube of VCAD in Novier-Stokes equation discretization. In this study, the wind environment of buildings is simulated by using V-Flow3D software, and the numerical simulation results show the practical applications of V-Flow3D in the building design and planning.

随着计算流体动力学（CFD）技术在各个行业的广泛应用，复杂几何体的网格生成成为CFD实际应用的瓶颈。基于RIKEN研究所开发的存储几何形状和材料属性数据的VCAD（Volume CAD）框架，开发了一个通用的流动分析求解器V-Flow 3D，用于求解任意几何形状的三维不可压缩粘性流体流动和传热问题。提出了一种新的方法来处理Novier-Stokes方程离散化中VCAD中KittaCube的形状。本文利用V-Flow 3D软件对建筑物的风环境进行了模拟，数值模拟结果显示了V-Flow 3D在建筑设计和规划中的实际应用。