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交变流动中突变截面局部损失特性分析
Alternative TitleMinor losses of oscillating flow through a sudden change area
陈燕燕; 张宇坤; 戴巍; 罗二仓
Source Publication工程热物理学报/JOURNAL OF ENGINEERING THERMOPHYSICS
2012-02-15
Volume33Issue:2Pages:186-190
ISSN0253-231X
Abstract从突变截面流道内流体满足的方程组出发,给出交变流动中突变截面阻力系数的定义以及考察方法,采用量纲分析法获得影响局部阻力特性的四个无量纲影响参数:动态雷诺数与幅值雷诺数之比、幅值雷诺数、变截面面积比、声场压力、速度相位差。通过PIV(粒子成像测速仪)测量,分析了流场结构特征,并与CFD计算结果对比,验证了CFD计算结果的可靠性,进而利用CFD模拟考察了四个无量纲参数对阻力特性的影响规律。
Other AbstractMinor losses for oscillating flow in a duct with sudden area change have been investigated through non-linear theoretical analysis, PIV measurement and CFD simulation. The flow filed was analyzed and results from the PIV measurement and CFD simulation were compared. It shows that the CFD simulation is useful for the flow characteristics analysis in oscillating flow. The influence of the four nondimensional parameters namely the dynamic Reynolds number, Reynolds number, the ratio of the area and the phase difference between pressure and velocity on the minor losses has been analyzed by CFD simulation.
Keyword交变流动 突变截面 局部损失 Piv测量 Cfd模拟
Subject Area流体力学
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Indexed ByCSCD ; EI
Language中文
Funding Organization国家自然科学基金重大项目(No.50890181);; 国家重点基础研究发展计划973项目(No.2010CB227303)
CSCD IDCSCD:4442281
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46429
Collection国家微重力实验室
Corresponding Author陈燕燕
Recommended Citation
GB/T 7714
陈燕燕,张宇坤,戴巍,等. 交变流动中突变截面局部损失特性分析[J]. 工程热物理学报/JOURNAL OF ENGINEERING THERMOPHYSICS,2012,33(2):186-190.
APA 陈燕燕,张宇坤,戴巍,&罗二仓.(2012).交变流动中突变截面局部损失特性分析.工程热物理学报/JOURNAL OF ENGINEERING THERMOPHYSICS,33(2),186-190.
MLA 陈燕燕,et al."交变流动中突变截面局部损失特性分析".工程热物理学报/JOURNAL OF ENGINEERING THERMOPHYSICS 33.2(2012):186-190.
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