Small Grants for Exploratory Research: Outflow Boundary Conditions

在探索性研究的小额赠款下， 是要进行的，探讨有效性的范围， 新开发边界的潜在理论基础 计算流体力学的应用条件。的 边界条件是有限的下游边界， 计算领域，这是计算所必需的， 无限域中的流动问题。 该下游边界的现有规范为 并且需要非常大的计算域来 避免那里的误差污染模拟。一 在精度和计算成本方面显著改进 将产生一个改进的规格的数据， 下游边界

Under a Small Grant for Exploratory Research, an investigation is to be carried out which explores the range of validity and underlying theoretical basis of a newly developed boundary condition for application to computational fluid dynamics. The boundary condition is for the downstream boundary of finite computing domains, which are computationally necessary for flow problems in an infinite domain. Existing specifications for this downstream boundary are unsatisfactory and require very large computing domains to avoid errors there from contaminating the simulation. A significant improvement in accuracy and computational cost would result from an improved specification of data on the downstream boundary.