作　　者： ; ; ;

机构地区： 清华大学土木水利学院水利水电工程系

出　　处： 《水动力学研究与进展（A辑）》 2003年第6期679-685,共7页

摘　　要： 　在水流数值模拟中,对不规则边界的处理一直是人们关心的问题。本文所介绍的斜对角笛卡尔方法是在直角坐标系下发展的一套处理复杂边界的新方法,它具有拟合精度高、处理简单、计算高效等特点,较之传统采用的锯齿法及贴体坐标法有其独特的优点。该方法被应用到福建泉州湾潮流实际计算之中,取得了满意的结果。 Simulation of complex irregular dynamic boundary is a key point of the calculation of flow. In this paper, the diagonal Cartesian method, which is an improvement to the Cartesian coordinates system, is addressed to simulate the complex boundary. Compared with the traditional sawtooth method and the bodyfitted curvilinear coordinate system method, this method takes the advantages of high simulative precision for complex boundary, simplicity of treatment, and high calculational efficiency. This method has also been applied to calculate the tidal current at Quanzhou bay in Fujian province. The calculation results agree well with the measurement and show that the new method can be used to the study cases.

关 键 词： 复杂边界 水流数学模型 斜对角笛卡尔法 福建 泉州湾潮流 水力学 水流参数 离散参数

领　　域： [水利工程] [理学] [理学] [一般工业技术]