四角切圆燃烧锅炉炉膛网格生成方法的研究  

Study on Mesh Pattern Generation of Tangentially Fired Furnaces

作　　者：潘维[1,2] 池作和[1,2] 斯东波[1,2] 阮涛[1,2] 岑可法[1,2] 

机构地区：[1]浙江大学热能工程研究所 [2]能源清洁利用与环境教育部重点实验室,杭州310027

出　　处：《动力工程》2005年第3期359-363,共5页Power Engineering

基　　金：国家重点基础研究发展规划项目(G1999022204 03);全国优秀博士论文专项基金资助

摘　　要：采用paving和map方法生成3种炉膛横截面网格,并分析了这3种不同网格的质量和数量。三角形网格数量庞大,计算效率低下,map四边形网格扭曲小,而paving网格光滑性更好。计算比较paving和map两种网格的伪扩散大小,结果表明:paving方法生成的辐射状网格能够有效抑制伪扩散,更适合模拟四角切圆锅炉炉内气流的强旋流动。Three mesh patterns of furnace cross-sections, generated by the Paving and the Map method are shown together with an analysis of the respective number and quality of the meshes. Results show that the triangular pattern involves a huge number of cells with inferior computational efficiency, quadrilateral Map meshes do not easily get distorted but Paving meshes exhibit and even superior smoothness. Moreover a comparison of pseudo-diffusion tendency of the Paving and the Map pattern shows that ray shaped meshes generated by the Paving method can effectively inhibit pseudo-diffusion and are thus more suitable for modeling intensive whirling flow in tangentially fired boiler furnaces.

关 键 词：动力机械工程 四角切圆 网格质量 伪扩散 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程]