摘要
使用CFD(Computational Fluid Dynamics)技术对带有扩张室的管道建立二维数值模型,在给定流体进口速度为2m/s的初始条件下,对扩张室长度为40、60、80、100 mm,直径为65、70、75 mm的管道分别进行仿真计算和分析。结果表明,建立的CFD模型能够较好地描述扩张管内的流体流动状态,通过改变扩张室的长度和宽度,可以获得不同形状结构下的流场参数,为扩张室管道的优化设计提供参考。
The two dimension of numerical model was constructed by CFD （ Computational Fluid Dynamics ） technology for a series of expansion-chamber in pipeline. Under the initial condition of inlet fluid rate at 2 m/s, as well as emulation calculation and analysis for different lengths and diameters of 40 mm, 60 mm, 80 mm and 100 mm, corresponded with diameter series of 65 mm, 70 mm and 75 mm were carried out. The result indicated that the CFD model could preferably describe the flowing state in the expansion-chamber and the fluent field parameters could be obtained through the model when the length and width of expansion-chamber varied, which, therefore, could provide reference for optimization design for the pipeline with Expansion-chamber.
出处
《湖南工业大学学报》
2008年第4期72-74,共3页
Journal of Hunan University of Technology
关键词
计算流体力学
扩张室
管道
形状优化
数值模拟
hydrodynamics
expansion-chamber
pipeline
numerical simulation
shape optimization
