| Summary: | 碩士 === 國立高雄應用科技大學 === 國際企業管理與製造產研碩外專班 === 99 === This thesis aims to make a numerical simulation of mixing performance flow around component in a channel, including analyzing pressure, temperature and velocity of the flow past cylinders. The analyzed result yields some optimum cases applied in real life. Numerical approach is performed, using the Comsol software, in the ranges of 50≤Re≤200, where Re is the Reynolds number. Cylinders have some kind of shape, such as: circle, square and elliptic one. The present results show that vortex structure behind the cylinders depends on Reynolds number, and also that changing pressure and velocity of flow past cylinders relies on Reynolds number and shape of cylinders.
The effect of three major parameters: temperature, velocity, pressure on flow is discussed. Besides, the shape effects of cylinders on three major parameters are analyzed. After Comsol software simulation, the result can predict flow phenomena and performance of flow in a channel. The simulation results demonstrate that all types of cylinders yield an effective improvement in the thermal mixing efficiency compared to that achieved in a channel with a straight mixing section. This investigation helps understanding of mixing characteristic and provides some information about flow of liquid in a channel. This information is handy for designing mixer for liquid supply devices.
|
|---|
