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交变流动中压力速度之间相位差对突变截面损失的影响分析
Alternative TitleInvestigation on the influence of the phase difference between pressure and velocity on the minor losses for a duct with sudden area change
张宇坤; 陈燕燕; 戴巍; 罗二仓
Source Publication低温与超导
2010-07-24
Volume38Issue:07Pages:9-14+19
Abstract从弱非线性热声理论出发,给出交变流动中突变截面阻力系数的定义以及考察方法。通过PIV(粒子成像测速仪)测量与CFD计算结果的对比,验证了CFD计算结果的可靠性。进而利用CFD模拟考察了交变流动中压力与速度之间相位差对突变截面局部损失的影响,观察到产生这种影响的流场内部流动机制。分析表明,阻力特性确实对声场压力与速度之间的相位差存在依赖性,但这种依赖性会随着非线性的增强而减少。
Keyword热声热机 突变截面 交变流动 局部损失 Cfd模拟 Piv
URL查看原文
Language中文
Funding Organization国家自然科学基金(50890181 ; 50625620 ; 10574135)资助
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44068
Collection国家微重力实验室
Corresponding Author张宇坤
Recommended Citation
GB/T 7714
张宇坤,陈燕燕,戴巍,等. 交变流动中压力速度之间相位差对突变截面损失的影响分析[J]. 低温与超导,2010,38(07):9-14+19.
APA 张宇坤,陈燕燕,戴巍,&罗二仓.(2010).交变流动中压力速度之间相位差对突变截面损失的影响分析.低温与超导,38(07),9-14+19.
MLA 张宇坤,et al."交变流动中压力速度之间相位差对突变截面损失的影响分析".低温与超导 38.07(2010):9-14+19.
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