作者：李朝辉, 戴景民
作者单位：哈尔滨工业大学电气工程及自动化学院, 黑龙江 哈尔滨 150001
关键词：燃气流量计量; 宽量程流量计; 流场特性; 漩涡发生体; 单钝体; 数值模拟
摘要：
应用基于有限体积法的FLUENT6.1计算软件对管道中单钝体的燃气绕流现象进行了仿真研究,即对实现管道燃气流量计量的DN200mm新型宽量程流量计的流场进行了数值模拟,就燃气计量管道中漩涡发生体的漩涡脱落频率与实测数据进行了比较。结果表明,数值计算结果与实测结果具有很好的一致性,从而提出了在新型燃气流量计的研制中可以应用数值模拟方法来优化流量计结构设计的结论。
Numerical simulation of fluid field characteristic of gas flow around single bluff body
LI Chao-hui, DAI Jing-min
School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
Abstract: This paper applied FVM-finite volume method-analysis software FLUENT6.1 to analyze the flow phenomenon of flow over single bluff body-square cylinder and introduced the numerical simulation for DN200mm new type wide-range flowmeter by using this software as well as the inter comparisons of shedding frequency of vortex generating bluff body-square cylinder and practical testing data.The result shows the excellent consistency between practical testing data and calculation data.Thus the paper concluded that the optimal design of the structure of wide-range flammable gas flowmeter can be based on numerical simulation.
Keywords: Measurement of gas flow; Wide-range flowmeter; Fluid field characteristic; Vortex generating body; Single bluff body; Numerical simulation
2007, 33(5): 7-9 收稿日期: 2007-1-21;收到修改稿日期: 2007-4-5
基金项目: 国家火炬计划项目(2002EB040222)
作者简介: 李朝辉(1969-),男,讲师,博士研究生,主要研究方向:流量测试技术及仪表。
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