Natural Convective Heat Transfer In Square Enclosure With Partition On Top Wall

Baba Noor, Nuratiqah (2012) Natural Convective Heat Transfer In Square Enclosure With Partition On Top Wall. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project is about studies on natural convection in square enclosure with partition on top wall. Two dimensional numerical solution for the square cavity were compared with the experimental result that has been done by other researcher. Boussinesq approximation had been considered as the natural convection involve with presence of gravity effect. The Rayleigh number for the cases is 1×107 as the result by the previous researcher. The model was a square cavity with double partition on top wall. The three different effects that were studied are the effects of different partition location, different partition lengths and different number of partition. For each case, the streamlines and isothermal lines was visualized and compared. Parameter for the different condition is same as the experimental data by the previous researcher. The result for different partition location shows that distance of partition that further from vertical wall produces more air circulation but most of the region in the square enclosure was filled with hot temperature. For the effect of different partition length, short length of partition shows better distribution of temperature in the cavity and more sufficient air circulation. Different number of partition shows well distributed temperature and sufficient air circulation on having double partitions. For a better air circulation enhancement, it is better to have double partition in short length of partition that is located in the middle of the top wall to optimize air circulation and temperature distribution.

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