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Modeling And Simulation Of Metal Organic Halide Vapor Phase Epitaxy (Mohvpe) Growth Chambe
Modeling And Simulation Of Metal Organic Halide Vapor Phase Epitaxy (Mohvpe) Growth Chambe
Faculty of Engineering University of Malaya
Over the last few decades, there was a substantial appeal on the growth of gallium-nitride (Ga-N) based alloy for high performance optoelectronic devices such as blue/violet laser diode, blue/white light emitting diode etc. In the recent years, there have been revolutionary changes in semiconductor field. Growth method for GaN-based film has been extensively explored, with success of thick film growth using halide vapor-phase epitaxy technique. The theoretical changes were attributed from the experimental results where modeling was vastly used for the purpose of design of equipment. This is because of the cost of the equipment and it is one of …
A Pair Of Bubbles' Rising Dynamics In A Xanthan Gum Solution: A Cfd Study
A Pair Of Bubbles' Rising Dynamics In A Xanthan Gum Solution: A Cfd Study
Faculty of Engineering University of Malaya
The motion and interaction of a bubble pair in a non-Newtonian fluid (xanthan gum solution) were numerically simulated using a volume of fluid (VOF) method, in which the continuous surface tension model and the power-law model were adopted to represent the surface tension and rheological properties of non-Newtonian fluids, respectively. The effects of the initial horizontal bubble interval, oblique alignment and rheological properties of non-Newtonian fluids on a pair of bubbles rising side-by-side are evaluated in this study. The results indicate that for the case with a non-dimensional initial horizontal bubble interval h* = 4.0, the interaction between the bubbles …