Experimentally Verified Three-dimensional Free Surface Fluid Simulation

经过实验验证的三维自由表面流体模拟

基本信息

批准号：
9422762
负责人：
Peter Raad
金额：
$ 21.73万
依托单位：
Southern Methodist University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1995
资助国家：
美国
起止时间：
1995-09-15 至 1999-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9422762&HistoricalAwards=false
关键词：
Experimentally Verified Three dimensional Free

项目摘要

ABSTRACT CTS-9422762 RAAD SOUTHERN METHODIST UNIVERSITY The proposed research seeks to develop an experimentally verified, three-dimensional, finite volume method to simulate fluid flows whose free surface is undergoing severe deformations. The computational effort will be complemented by experimental work using an open channel flow apparatus and a high speed video camera to experimentally determine the shape of the free surface during transient and steady-state flows in an open channel containing obstructions. Simulations of water sloshing and waves breaking in a tank will be used to investigate the important mechanisms of the decay of turbulent vorticity on a very active surface and the penetration of turbulence into the main body of water below breaking and spilling waves. To complement the qualitative data obtained by use of the high speed camera, a digital particle imaging velocimeter will be used to obtain quantitative velocity data. The proposed simulation method will represent a significant advance in free surface fluid dynamics. From a practical standpoint, the extension to three dimensions is most important, since the simulation must be three-dimensional to enable it to realize its potential as a manufacturing productivity tool in, say, die casting, or as a realistic simulator of violent fluid interactions such as in water rushing over and around dikes and bridge pillars.

摘要CTS-9422762 RAAD Southern Methodist University拟议的研究旨在开发经过实验验证的三维有限体积方法，以模拟其自由表面正在经历严重变形的流体流动。使用开放通道流动器和高速摄像机实验性工作将补充计算工作，以实验确定在包含障碍物的开放通道中短暂和稳态流动期间自由表面的形状。水在水箱中的水和波浪中断的模拟将用于研究非常活跃的表面上湍流涡流衰减的重要机制，以及在破裂和溢出波下方水中的湍流渗透到主体中。为了补充通过使用高速摄像机获得的定性数据，将使用数字粒子成像速度计来获取定量速度数据。提出的仿真方法将代表自由表面流体动力学的重大进展。从实际的角度来看，最重要的是，扩展到三维是最重要的，因为该模拟必须具有三维，以使其能够实现其作为制造生产力工具的潜力，例如，铸造或作为暴力流体相互作用的逼真的模拟器，例如在水上和周围的水上和周围的水中涌入的水。