PIV를 이용한 이중 충돌제트의 유동 특성 = Flow Characteristics of Dual Impinging Jets using PIV

다국어 초록 (Multilingual Abstract)

The flow characteristics of unventilated dual impinging jets were experimentally investigated. Two nozzles with an aspect ratio of 20 were separated by 6 nozzle widths. The Reynolds number based on nozzle width and nozzle exit velocity was set to 5,000. A Particle Image Velocimetry (PIV) was used to measure turbulent velocity components. It was found that, when an impingement plate was installed in the converging region, there was a stagnation region in the inner area between nozzles. However, when it was installed in the combined region, both jets were merged and collided into the plate, showing single-jet characteristics. In addition, at a dual impinging jet, as the distance between a nozzle and an impingement plate decreased, the spanwise turbulent intensity at the plate increased.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 실험장치 및 방법
• 3. 실험결과
• 4. 결론
• 후기
• 참고문헌

참고문헌 (Reference)

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5 Morel, T., "Comprehensive design of axisymmetic wind tunnel contraction" 97 : 225-233, 1975

6 Carcasci, C., "An experimental investigation on air impinging jets using visualisation methods" 38 : 808-818, 1999

7 Fitzgerald, J. A, "A study of the flow field of a confined and submerged impinging jet" 41 (41): 1025-1034, 1997