Abstract
A numerical model is built to simulate two-phase flow and heat transfer performance in an axial rotating heat pipe. The volume of the fluid is used to describe two-phase flow and heat transfer characteristics. A mixed phase transition model with pure heat conduction and natural convection is studied. Based on mixed phase transformation model, the change rules are analyzed on the characteristics of two-phase flow and heat transfer such as heat load, filling, rotating speed and working medium. The results are compared with the experimental results in order to explore the mixed phase transformation model. The results show that the mixed phase transformation model is agree with the experimental results. The heat load and filling make little effect on the heat transfer performance. As the rotating speed increase, the heat transfer performance is enhanced. The physical properties of working medium have great influence on the heat transfer performance. It is concluded that the numerical model is a useful method to simulate the flow and heat transfer in an axial rotating heat pipe.
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