직관부와 디퓨져 길이 변화에 따른 Side-type 이젝터의 유동특성 = Effect of throat and diffuser length on the flow characteristics in a side-type Ejector

다국어 초록 (Multilingual Abstract)

Ejector is a device that uses the energy of a fluid to move another fluid. This device works like a vacuum pump without usage of piston, rotor of any other moving components. An ejector contains an active nozzle, a passice nozzle, a mixing chamber and a diffuser. Mainly, the ejector performance directly affects the water performance, therfore, an investigation on the characteristics and an efficient design of the ejector are importants to improve ejector water systems. In the present study the effect of the throat and diffuser length on flow characteristics in a side type ejector. A computational fluid dynamics (CFD) code, ANSYS-CFX, is employed to predict the flow phenomena and performance of side-type ejector. In addition to this the CFD results is compared with the experimental data. It was found from the study that case 3-1 had the highest efficiency of 23.4%.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 경계조건 및 수치 해석방법
• 3. 결과 및 고찰
• 후기
• 4. 결론
• 참고문헌