2차원 쐐기형 제어핀 후류의 공동유동 특성에 대한 실험연구
An Experimental Study on Wake Cavity Flow Characteristics of Two-dimensional Wedge Shaped Control Fins
2
조회
0
다운로드
6
인용
0
참고문헌
키워드
초록
As distinct from a slender body, the separation of the boundary layer on a bluff body give rise to complex wakes in which various kinds of vortices form, develop and interact with each other. In this paper, we investigate cavitation wake field behind wedge shaped two-dimensional fin models. Eight different models are tested at the Chungnam National University Cavitation Tunnel (CNU-CT). First, we measure wake cavity shapes and compare with numerical results, which shows the good agreement with each other. In addition, we demonstrate that wake flow characteristics of the control fin are clearly identified by the correlation analysis of high-speed camera images and pressure fluctuation measurements.
Abstract
As distinct from a slender body, the separation of the boundary layer on a bluff body give rise to complex wakes in which various kinds of vortices form, develop and interact with each other. In this paper, we investigate cavitation wake field behind wedge shaped two-dimensional fin models. Eight different models are tested at the Chungnam National University Cavitation Tunnel (CNU-CT). First, we measure wake cavity shapes and compare with numerical results, which shows the good agreement with each other. In addition, we demonstrate that wake flow characteristics of the control fin are clearly identified by the correlation analysis of high-speed camera images and pressure fluctuation measurements.
참고문헌 (5)
- 안병권, "Experimental and numerical studies on super-cavitating flow of axisymmetric cavitators", International Journal of Naval Architecture and Ocean Engineering, 2(1), pp.39~44 (2010), 대한조선학회
- 안병권, "Experimental investigation of supercavitating flows", International Journal of Naval Architecture and Ocean Engineering, 4(2), pp.123~131 (2012), 대한조선학회[DOI]
- 김지혜, "3차원 축대칭 캐비테이터의 초월공동유동 수치해석", 대한조선학회 논문집, 50(3), pp.160~166 (2013), 대한조선학회
- Plesset, M. S., "Cavity Drag in Two and Three Dimensions", Journal of Applied Physics, 19(10), pp.934~939 (1948)
- Water Tunnel Investigation of Two-dimensional Cavities, "Waid, R. L.", The Hydrodynamics Laboratory of California Institute of Technology, ~, pp.The Hydrodynamics Laboratory of California Institute of Technology. Report. E-73.6 (1957)