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Journal of Applied Fluid Mechanics، جلد ۱۶، شماره ۶، صفحات ۱۱۳۴-۱۱۴۴
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عنوان انگلیسی Flow Characteristics and Vortex Structure of Flow Across Micro Cylinders by Micro-PIV Measurement and CFD Simulation
چکیده انگلیسی مقاله 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.
کلیدواژه‌های انگلیسی مقاله fluid flow, Micro cylinders, Micro-PIV, Numerical simulation, Vortex
نویسندگان مقاله M. Liu |
School of Mechanical and Electrical Engineering, Kunming University of Science and Technology Kunming, Yunnan Province, 650093, China

M. Tao |
School of Mechanical and Electrical Engineering, Kunming University of Science and Technology Kunming, Yunnan Province, 650093, China

Y. Kang |
School of Mechanical and Electrical Engineering, Kunming University of Science and Technology Kunming, Yunnan Province, 650093, China

D. Gao |
School of Mechanical and Electrical Engineering, Kunming University of Science and Technology Kunming, Yunnan Province, 650093, China

نشانی اینترنتی https://www.jafmonline.net/article_2212_6d9c4ec69ca9fd3420b0516406edb3c2.pdf
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