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Journal of Enhanced Heat Transfer
Импакт фактор: 1.406 5-летний Импакт фактор: 1.075 SJR: 0.287 SNIP: 0.653 CiteScore™: 1.2

ISSN Печать: 1065-5131
ISSN Онлайн: 1026-5511

Выпуски:
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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.2016014587
pages 485-502

INVESTIGATION OF OSCILLATORY FLOW IN AN OSCILLATING HEAT PIPE WITH RANDOM INITIAL CONDITIONS

Zheng Li
College of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
mo yang
university of shanghai for science and technology
Yuwen Zhang
University of Missouri, Columbia, MO 65201, USA
Stephen Montgomery-Smith
Department of Mathematics, University of Missouri, Columbia, MO 65211, USA

Краткое описание

The effects of the initial conditions on the oscillatory flow in oscillating heat pipes (OHPs) are investigated numerically. The initial vapor temperature, pressure, and liquid displacement are taken into consideration. Three test cases are solved with different initial condition settings. The liquid displacement and vapor temperature tendencies are compared to find the initial condition that led to the best heat transfer performance in all test cases. Fast Fourier transform was employed to calculate the frequency based on liquid displacement. The results show that the initial conditions have a significant effect on OHP performance. Keeping the initial conditions uniform is an effective way for heat transfer enhancement of the system.


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