The applications of electrofusion joints for gas pipes are increasing, and so studies on the temperature distribution in these joints have an important role in polyethylene welding. In this study, a numerical simulation of the melting phenomenon in an electrofusion joint has been performed using an enthalpy-based lattice Boltzmann method. The lattice D2Q9 model was applied to determine the density and velocity fields, and the D2Q5 model was applied for the temperature field. The effect of the wire position, the distance, and the magnitude of them on the melting rate was studied. The simulations were carried out for a Stefan number of 10, a Rayleigh number of , and a relative thermal conductivity () ranging from 10 to 30. The rate of heat transfer in terms of the Nusselt number was effectively changed by the distance, height, and magnitude of the electrical wires inside the electrofusion joint. The obtained results showed that the rate of melting increased when the relative distance and the magnitude of the wire became greater. The present results provided a good approximation for choosing effective parameters of designing EF.
Simulation of Melting in an Electrofusion Joint Using Lattice Boltzmann Method
Journal of Thermophysics and Heat Transfer ; 33 , 2 ; 334-342
2019-04-01
Article (Journal)
Electronic Resource
English
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