Flow Characteristics and Vortex Structure of Flow Across Micro Cylinders by Micro-PIV Measurement and CFD Simulation
Publish place: Journal of Applied Fluid Mechanics، Vol: 16، Issue: 6
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JAFM-16-6_004
تاریخ نمایه سازی: 12 فروردین 1402
Abstract:
The micro tube bank model is a commonly used structure in microelectro mechanical cooling systems. Flow across a micro tube bank is a basic benchmark for analyzing flow resistance and heat transfer capability. In this paper, the flow around a micro tube bank model was studied both experimentally and numerically. Micro-Particle Image Velocimetry technology was used to measure the flow field at different inlet flow rates. The laminar flow model, S-A model and standard k-ε model were used to calculate the flow field inside the micro tube bank model. By comparing the results from the three numerical models with the experimental results, there is a certain gap between them can be noted. However, it was found that the standard k-ε model is better than laminar model and S-A model in the comparison between numerical results and experimental results. In conclusion, the standard k-ε model is more suitable for the numerical calculation of the flow field around a micro scale tube bank model.
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Authors
M. Liu
School of Mechanical and Electrical Engineering, Kunming University of Science and Technology Kunming, Yunnan Province, ۶۵۰۰۹۳, China
M. Tao
School of Mechanical and Electrical Engineering, Kunming University of Science and Technology Kunming, Yunnan Province, ۶۵۰۰۹۳, China
Y. Kang
School of Mechanical and Electrical Engineering, Kunming University of Science and Technology Kunming, Yunnan Province, ۶۵۰۰۹۳, China
D. Gao
School of Mechanical and Electrical Engineering, Kunming University of Science and Technology Kunming, Yunnan Province, ۶۵۰۰۹۳, China
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