Numerical Simulation Of Two - Dimensional Transient Heat Conduction Using Finite Element Method

Ooi, Hooi Woon (2005) Numerical Simulation Of Two - Dimensional Transient Heat Conduction Using Finite Element Method. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

A simulation study is undertaken by using MSC/NASTRAN to analyze the transient heat transfer analysis which has embedded with finite element method in order to run the numerical simulation in a two dimensional slab materials. This study investigates the temperature changes with time for a given boundary condition using different delta time for 32 and 200 elements. Comparison between MSC/NASTRAN and Mathlab was also performing in this analysis. An attempt was made to analyze the transient heat conduction for different materials namely aluminium, glass and building brick. Quadrilateral and triangular elements are being used in the analysis. From the simulation results it was showed that 200 elements with combination of delta time 0.4 seconds yield a better result and achieve steady state faster by providing more accurate analysis. Not much significant difference was observed between MSC NASTRAN and Math lab with an error less than 1%, which is deemed satisfactory. The results also showed that delta time I 0 seconds achieve steady state slightly faster due to the time spacing. Quadrilateral elements is suitable in two dimensional because it provide sufficient flexibility as comparing to triangular mesh. Aluminium was found is the best material to release heat to surrounding faster comparing with building brick and glass. For more temperature difference applied on the both side of the materials. we can have a better cooling conditions.

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