网格数量对离心风机数值计算结果影响分析及试验验证  

Influence Research and Test Verification of Grid Number to the Centrifugal Blower Simulation

作　　者：张寅豹[1] 丁可金[2] 王璐[2] 

机构地区：[1]天津出入境检验检疫局,天津300308 [2]中国船舶重工集团公司第704研究所,上海200031

出　　处：《机电设备》2016年第3期12-17,共6页Mechanical and Electrical Equipment

摘　　要：以某型离心通风机为研究对象,通过该型风机模型不同网格数量下数值计算结果、内部流场以及试验结果的对比,分析网格数量对数值仿真计算结果的影响,得出在一定范围内,网格数量的增加能够明显提高计算精度,更为清晰地显示风机内部流动,而数量达到一定程度后,网格的多少已经对计算结果影响不大,进一步增加网格数只会增加计算耗时。This article focuses on a type of centrifugal ventilator. In order to study the injTuence of grid number to the simulation, numerical calculation of the centrifugal ventilator is conducted by using different number of grids. By contrast with the numerical result, internal flow field and experimental result, when the grid number is in a certain range, the increase of the number of grid can improve the calculation accuracy obviously, and shows the internal flow of the ventilator better. But when the number of the grid becomes very huge, there is little effect to the numerical result, and it needs more time.

关 键 词：离心风机 数值模拟 网格数量 

分 类 号：TH432[机械工程—机械制造及自动化]