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浙江大学学报(工学版)
J4  2012, Vol. 46 Issue (4): 604-609    DOI: 10.3785/j.issn.1008-973X.2012.04.005
能源与机械工程     
管内交变流动速度相位侧向分布特性
汤珂, 张玙, 唐文涛, 金滔
浙江大学制冷与低温研究所,浙江 杭州 310027
Transverse phase profile characteristics of oscillatory pipe flow
TANG Ke, ZHANG Yu, TANG Wen-tao, JIN Tao
Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China
 全文: PDF 
摘要：

为了研究管内交变流动在流道侧向的速度相位分布特性,采用数值模拟方法针对平板流道内可压缩交变流动进行计算与分析.通过比较流道截面不同位置的速度波以及同一周期内不同相位时刻的速度分布,考察交变流动速度相位沿流道侧向的变化特点及其对速度分布的影响.根据典型计算结果,对瓦伦西数Va和最大雷诺数Remax对速度相位沿流道侧向分布特性的影响进行定性分析.提出定量描述流道侧向速度相位变化规律的评价指标截面平均相位差（CAPD）,利用CAPD进一步定量分析Va和Remax对管内交变流动速度相位侧向分布特性的影响.结果表明,CAPD随Va增加而增大；相比于Remax,Va对流道侧向速度相位分布的影响更显著.
关键词： 交变流动;  速度环状效应;  相位;  瓦伦西数;  最大雷诺数    
Abstract:

Numerical simulation method was used to model and analyze the compressible oscillatory flow inside parallel plate channel in order to study the transverse velocity phase profile characteristics. The variation of velocity phase and its influence on the velocity profiles at the channel cross-section were investigated by comparing the velocity oscillations at different positions of the channel crosssection, and also by comparing the velocity profiles at different phase angles in a period. A qualitative discussion focused on the impact of Valensi number Va and maximum Reynolds number Remax on the phase profile characteristics based on the typical simulation results. An index parameter, crosssectional average phase difference (CAPD), was proposed to quantitatively describe the phase profile characteristics. The impact of Va and Remax on the phase profile characteristics was further quantitatively analyzed with the aid of index parameter CAPD. The analysis indicates that CAPD increases with a rise in Va, which has more significant influence on the transverse velocity phase profiles than Remax.
Key words: oscillatory flow    velocity annular effect    phase    Valensi number    maximum Reynolds number
出版日期: 2012-05-02
:  TB 651  
基金资助:

国家自然科学基金资助项目(50890182);National Natural Science Foundation of China (50890182).
通讯作者: 金滔,男,教授.     E-mail: jintao@zju.edu.cn
作者简介: 汤珂(1978—),男,副教授,从事热声热机和交变流动传热等研究.E-mail: ktang@zju.edu.cn
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引用本文:

汤珂, 张玙, 唐文涛, 金滔. 管内交变流动速度相位侧向分布特性[J]. J4, 2012, 46(4): 604-609.

TANG Ke, ZHANG Yu, TANG Wen-tao, JIN Tao. Transverse phase profile characteristics of oscillatory pipe flow. J4, 2012, 46(4): 604-609.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2012.04.005    或    http://www.zjujournals.com/xueshu/eng/CN/Y2012/V46/I4/604

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