Numerical and Experimental Study of Natural Convection for Inclined Double-Glasses

• Main Authors: Ming-HanShih, 石明翰
• Other Authors: Han-Taw Chen
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/27818411974133741823

碩士 === 國立成功大學 === 機械工程學系 === 103 === This study use the inverse method and CFD software with the experimental data to research the flow structure and temperature distribution in the cavity of double glass. In the different case with various inclined angle and open cavity configuration, obtaining the change of flow structure and temperature distribution and discuss it. In order to verify the reliability of the inverse method in present study, the present study will compare results of inverse method with reference [8], using the CFD software with results of inverse method and experimental data to simulate the flow structure and temperature distribution in the cavity of double glass. Due to Rayleigh number is lower than criteria of turbulent in the cavity, the laminar mode will used in the simulation in the present study. Besides, the outside wall heat transfer coefficients obtained by different Nusselt number correlation in various inclined angle are compared with experimental results. In the some case the result of correlation have a little gap to the experimental results, however, still in the moderate range. From the simulation results of steady and transient, the present study find that the open cavity configuration are more important of convection in the cavity of double glass than changing inclined angle. However, the influence by open cavity configuration are not as good as expected. Therefore, it still need much further research in this problem.