Thermal analysis on porous material by finite element method

Abstract

The aim of this project is to study the heat flux of two-phase rectangular composite bar via a random distribution of materials to discover the range of critical compositions for which the percolation of heat flux will be diminished. With an aid of a finite element software program, Ansys 11.0, the thermal properties of the modelled rectangular bar and results of the simulations are then interpreted and discussed.

The first part of the project is to perform the thermal analysis on the air-aluminium composite bar and compare the analytical results and FEA results of the temperature distribution of aluminium composite bar. The second part of the project is to perform the nodal temperature analysis on the same composite bar to study the average centre node temperature. The third part of the project is to perform the heat flux temperature analysis on the same composite bar to study the average thermal flux of centre node line to discover the range of critical compositions for which the percolation of heat flux will be diminished. In the fourth part of the project is to evaluate and study the equivalent thermal conductivity of centre node temperature.

At every case, the numerical simulation of the temperature and heat flux is obtained with a sample size of 30 for each of given volume fraction. The finite element simulation results for which the percolation of heat flux will be diminished are within the range of 30% to 40% of Air.