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Effects of Initial Conditions on Oscillatory Flow in an Oscillating Heat Pipe

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

Stephen Montgomery-Smith
Department of Mathematics, University of Missouri, Columbia, MO 65211, USA

DOI: 10.1615/TFESC1.hte.013236
pages 1269-1281


キーワード: oscillating heat pipe, initial condition, random number

要約

Effects of initial conditions on the oscillatory flow in oscillating heat pipes (OHPs) are investigated numerically. Initial vapor temperature, pressure and liquid displacement are in consideration. Three test cases are solved with different initial condition settings. Liquid displacement and vapor temperature tendencies are compared to find which initial condition lead to the best heat transfer performance in all test cases. Fast Fourier transform is employed to calculate the frequency based on liquid displacement. The results show that initial condition has significant effect on oscillating heat pipe performance and keeping initial condition uniform is an effective way for heat transfer enhancement of the system.

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