突扩流的数值模拟  

NUMERICAL SIMULATION OF FLOW AT SUDDEN EXPANSION

作　　者：王小华[1] 鞠硕华[2] 朱文芳[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,150090 [2]哈尔滨工业大学设计院,150006

出　　处：《低温建筑技术》2003年第1期59-60,共2页Low Temperature Architecture Technology

摘　　要：通过二阶全展开ETG有限元方法及其与大涡模拟的结合 ,对不同雷诺数条件下的突扩流动进行模拟 。Head loss take place when fluid pass a pipe with sudden change in direction or sudden expansion in diameter.The second-order full expansion of Euler-Taylor-Galerkin(ETG)finite element method and its cooperation with large eddy simulation(LES) are used to simulate the flow with sudden expansion in diameter and different Reynolds number.Calculation resultscoincide with that of the given literatures.

关 键 词：突扩流 二阶全展开ETG有限元方法 大涡模拟 暖通空调 

分 类 号：TU834.33[建筑科学—供热、供燃气、通风及空调工程]