The Effects of Injection Angle and Pressure Difference Across the Curtain on the Shapes of Annular Liquid Curtains

• Main Authors: HUANG WU-CHEN, 黃戊辰
• Other Authors: S.G. Chuech
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/29355338087217417862

碩士 === 國立海洋大學 === 機械與輪機工程學系 === 87 === The technology of liquid curtains can be applied in a chemical reactor for control of toxic wastes, stack emission scrubbing for pollution control, scrubbing of radioactive/non-radioactive particulate or soluble materials, and especially the laser fusion reactor secure system. The liquid curtain has been proposed for many different functions and applications, and this is depended on different liquids used in the system, and the different nozzle designs (including the nozzle diameter and outlet angle etc.). In addition, different operation conditions (including the flow rate and pressure difference across the curtain), as well as the shape, size, thickness, velocity of the curtain also play an important role in different applications. The past studies only focused on the influence of the flow rates, pressure differences, and liquid curtain thickness on the liquid curtain convergence length. However, the combined effects of the variations of the nozzle outlet angle with the flow rate, pressure difference, and thickness on the liquid curtain convergence length, and the shape were less studied. In the present study, the nozzle outlet angle was varied to combine the variations of the flow rate, pressure difference, and thickness to investigate theoretically and experimentally the liquid curtains convergence length and the shape of the curtains. In order to validate the numerical model used in the present study, several cases were numerically analyzed to compare with measurement data. Thus, the numerical model can be improved to be utilized for the future design of the liquid curtain and its nozzle using the CFD technology.