A numerical investigation of the flow of nanofluids through a micro Tesla valve

被引：89
|
作者：
Qian, Jin-yuan [1 ,2 ]
Chen, Min-rui [1 ]
Liu, Xue-ling [2 ]
Jin, Zhi-jiang [1 ]
机构：
[1] Zhejiang Univ, Inst Proc Equipment, Coll Energy Engn, Hangzhou 310027, Zhejiang, Peoples R China
[2] Tianjin Univ, MOE Key Lab Efficient Utilizat Low & Medium Grade, Tianjin 300350, Peoples R China
来源：
JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A | 2019年 / 20卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Nanofluids; Tesla valve; Pressure drop; Nanoparticles; Computational fluid dynamics (CFD); OSCILLATING HEAT-PIPE; ALUMINA/WATER NANOFLUID; FORCED-CONVECTION; FLUID; PERFORMANCE; CORE; SINK;
D O I：
10.1631/jzus.A1800431
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, Al2O3-water nanofluids flowing through a micro-scale T45-R type Tesla valve was investigated numerically. Both forward and reverse flows were investigated based on a verified numerical model. The effects of nanofluids flow rate, temperature, and nanoparticle volume fraction on fluid separation in the bifurcated section and the pressure drop characteristics were analyzed. It was found that most of the nanofluids flow into the straight channel of the bifurcated section when flowing forward, and into the arc channel when flowing reversely. The percentage of the main flow increases with flow rate, temperature, and nanoparticle volume fraction. Additionally, the jet flow from the arc channel leads to a larger pressure drop than forward flow. Finally, the diodicity was found most affected by flow rate, and a correlation used to predict the change in diodicity with the flow rate was proposed.
引用
收藏
页码：50 / 60
页数：11
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