CAJ | 학술논문

在天然河流的流场和污染物输移的数值模拟中，河流网格划分是一项非常重要的任务．由于天然河道的边界往往比较复杂，若采用规则的网格划分方法，很难做到与实际岸线准确拟合，而贴体网格在处理边界问题方面具有一定优势，因此常常用来对复杂边界河道进行网格划分本文采用泊松方程，结合边界点的滑移生成贴体网格，探索一种能够较好地对复杂边界二维河道进行剖分的方法，并用于某河流的污染事故模拟，证明该方法是成功有效的．
재천연하류적류장화오염물수이적수치모의중，하류망격화분시일항비상중요적임무．유우천연하도적변계왕왕비교복잡，약채용규칙적망격화분방법，흔난주도여실제안선준학의합，이첩체망격재처리변계문제방면구유일정우세，인차상상용래대복잡변계하도진행망격화분본문채용박송방정，결합변계점적활이생성첩체망격，탐색일충능구교호지대복잡변계이유하도진행부분적방법，병용우모하류적오염사고모의，증명해방법시성공유효적．
In numerical simulation of natural rivers flow and pollutants transportation, the good grid distribution in the complex river flow field is very important for getting accurate flow and pollutant transportation behaviors. Due to the complexity of the natural river shorelines, using the regular grid is difficult to achieve accurate boundary fitting. Based on the advantages of the body-fitted grids dealing with complex geometrical boundaries, a boundary-point-sliding method is proposed based on the Poisson equation solver to generate a body-fitted grid for the two-dimensional complex river flow field. The results show that the proposed method is efficient for the present river pollutant problems.