Publisher : Korea Society of Computational Fluids Engineering
DOI : 10.6112/kscfe.2016.21.1.086
Title & Authors
COMPUTATIONAL ANALYSIS OF THERMAL FLOW WITH VARYING THE DIAMETER AND THE NUMBER OF TUBES IN PULSATING HEAT PIPES Han, S.H.; Choi, J.W.; Kim, S.C.;
In this paper, heat transfer characteristics of pulsating heat pipes are investigated with the diameter and the number of tubes through the computational analysis of thermal flow. The numerical simulation includes the phase change precess with VOF model using OpenFOAM software. The numerical code is modified for the phase change to occur with saturation temperature. The numerical results are compared with the previous ones to validate the present code. The resonable results have been obtained based on the mass transfer time relaxation parameter considering the density ratio. When the ratio of length to diameter and the number of tubes are on the decrease, the thermal resistances also tends to decrease in the pulsating heat pipes. These numerical results will supply the base line data to design and to manufacture the pulsating heat pipe.
Pulsationg Heat Pipe;Heat Transfer Characteristics;Phase Change;VOF Model;Thermal Resistance;
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