STUDY OF THE EFFECT OF THE POROUS PLATES ON THE TANK BOTTOM ON THE BOILING PROCESS

Year 2019, Volume: 5 Issue: 3, 149 - 156, 14.03.2019

Morteza Bayareh

https://doi.org/10.18186/thermal.540120

Cited By: 4

Abstract

In the
present study, the boiling process is simulated in a fixed-temperature tank
using the ANSYS FLUENT commercial software. Eulerian method is used to simulate
the condensation and evaporation processes. The effect of porous media on the
boiling process is investigated. For this purpose, a porous medium with
different porosity coefficients is placed on the bottom of the tank and its
effect on the bubble dynamics and wall thermal flux is investigated. The
simulation is carried out in two dimensions and is considered as unstable. The
results show that the porosity coefficient of the porous medium affects the
bubble dynamics.  The process of phase
change decreases by decreasing porosity. Also, the growth rate of the bubble
phase in the tank increases with increasing the heat transfer coefficient of
the porous medium.

Keywords

CFD, Porosity Coefficient, Boiling, Two-Phase Flow

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