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http://dx.doi.org/10.9766/KIMST.2011.14.3.364

Measurement of Turbulent Wake behind a Self-Propelled SUBOFF Model and Derivation of Experimental Equations  

Shin, Myung-Soo (KORDI)
Moon, Il-Sung (KORDI)
Nah, Young-In (ADD)
Park, Jong-Chun (Pusan National University)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.14, no.3, 2011 , pp. 364-371 More about this Journal
Abstract
This paper presents experimental results and derived experimental equations to investigate the turbulent wake characteristics generated by the self-propelled SUBOFF submarine model. A self-propelled SUBOFF model which was assumed as an axial-symmetric body was used to create wake, and a thin strut was mounted on the topside of the model. The experiments were conducted in a circulating water channel(CWC), and the hot-film was used to measure the turbulence in wake cross-section at the distance range of 0.0~2.0L from the model. The hot film anemometer measured turbulent velocity fluctuations, and the time-averaged mean velocity and turbulent intensity are obtained from the acquired time-series data. Measured results show well the general characteristics of turbulent intensity, kinetic energy and mean velocity distribution. Also, this paper presents derived experimental equations, which is extended result to the reference [1]. These experimental equations show well the general characteristics of the turbulent wake behind the self-propelled submerged body.
Keywords
Turbulent Wake; Turbulent Intensity; Turbulent Kinetic Energy; Self-propelled SUBOFF Model; CWC Experiments(Circulating Water Channel); Experimental Equation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 방형도, 박종천, 허재경, "KVLCC2M 모형선 주위 난류항적의 수치 시뮬레이션", 대한조선학회 추계학술대회논문집 pp. 769-776, 2007.
2 Chang, Y., Zhao, F., Zhang, "Numerical Simulation Of Internal Waves Excited by a Submarine Moving In The Two-Layer Stratified Fluid", Journal of Hydrodynamics, Ser. B, Vol. 18, No. 3, Suppl., pp.330-336, 2006.   DOI   ScienceOn
3 김 진, 박일룡, 반석호, "Calculation of Turbulent Flows around a Submarine for the Prediction of Hydrodynamic Performance", Journal of Ship and Ocean Technology, Vol. 7, No. 4, pp. 16-31, 2003.
4 Toda, T. et al., "Mean Flow Measurements in the Boundary Layer and Wake of a Series 60 $C_B=0.6$Model", IIHR Report No. 326, 1988.
5 신명수, 문일성, 나영인, 박종천, "SUBOFF 모형후방 난류항적 계측 및 실험식 유도", 한국군사과학기술학회지, 제14권, 제2호, pp. 198-204, 2011.
6 장진호, 박원규, "유동 방향 변화에 따른 잠수함주위의 유동 특성과 유체동역학적 계수의 변화", 대한조선학회논문집, 제43권, 제4호, 통권 148호,pp. 460-466, 2006.