퓐이 나선형으로 부착된 원주희 후류에 관한 실험적 연구

• 영문명: Experimental Study on the Wake behind a Circular Cylinder with Helical Fin
• 발행기관: 한국해양대학교 해사산업연구소
• 저자명: 남청도(C.D.Nam) 민경용(K.Y.Min)
• 간행물 정보: 『해사산업연구소논문집』제11집, 7~20쪽, 전체 14쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2001.12.01

영문 초록

The characteristics of two dimensional turbulent wake flow past a circular cylinder with helical fin was investigated by using X type hot wire anemometer for the experiment. As a result it is cleared that Karman vortex sheds from the cylinder with helical fin as the same as a circular cylinder or a rectangular cylinder. Turbulent characteristics such as the distribution of the mean velocity, turbulent kinetic energy, autocorrelation coefficient and its spectrum of them are suggested. It is also found that the width of the wake flow become larger as the pitch of the fin increased, and the frequency of vortex shedding is on the decrease.

목차

Abstract

기호 및 약어

1. 서론

2. 난류의 통계적 이론

3. 실험장치 및 실험방법

4. 실험결과 및 고찰

5. 결론

참고문헌