Browse > Article
http://dx.doi.org/10.3744/SNAK.2014.51.2.171

Propeller Wake Measurement of a Model Ship in Self Propulsion Condition using Towed Underwater PIV  

Seo, Jeonghwa (Dept. of Naval Architectrure and Ocean Engineering, Seoul National University)
Yoo, Geuk Sang (Dept. of Naval Architectrure and Ocean Engineering, Seoul National University)
Lim, Tae Gu (Dept. of Naval Architectrure and Ocean Engineering, Seoul National University)
Seol, Dong Myung (Naval Ship Engineering Division, Naval Force Analysis Test & Evaluation, Republic of Korea Navy)
Han, Bum Woo (Hyundai Maritime Research Institute)
Rhee, Shin Hyung (Dept. of Naval Architectrure and Ocean Engineering, Seoul National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.51, no.2, 2014 , pp. 171-177 More about this Journal
Abstract
A two-dimensional particle image velocimetry (2D PIV) system in a towing tank is employed to measure a wake field of a very large crude oil carrier model with rotating propeller in self propulsion condition, to identify characteristics of wake of a propeller working behind a ship. Phase-averaged and time-averaged flow fields are measured for a horizontal plane. Scale ratio of the model ship is 1/100 and Froude number is 0.142. By phase-averaging technique, trajectories of tip vortex and hub vortex are identified and characteristic secondary vortex distribution is observed in the hub vortex region. Propeller wake on the starboard side is more accelerated than that on the port side, due to the difference of inflow of propeller blades. The hub vortex trajectory tends to face the port side. With the fluctuation part of the phase-averaged velocity field, turbulent kinetic energy (TKE) is also derived. In the center of tip vortex and hub vortex region, high TKE concentration is observed. In addition, a time-averaged vector field is also measured and compared with phase-averaged vector field.
Keywords
Particle image velocimetry; Tip vortex; Towing tank experiment;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Felli, M. & Di Felice F., 2005. Propeller Wake Analysis in Nonuniform Inflow by LDV Phase Sampling Techniques. Journal of Marine Science and Technology, 10(4), pp.159-172.   DOI
2 Anschau, P. & Mach, K.P., 2007. Application of a Stereo PIV System for Investigation of Flow Fields in Towing Tank and Cavitation Tunnel. Archives of Civil and Mechanical Engineering, 7(3), pp.5-17.
3 Calcagno, G. Di Felice, F. Felli, M. & Pereira, F., 2005. A Stereo-PIV Investigation of a Propeller's Wake Behind a Ship Model in a Large Free-surface Tunnel. Marine Technology Society Journal, 39(2), pp.94-102.
4 Di Felice, F. Felli, M. & De Gregorio, F., 2001. Ship Model Wake Analysis by Means of PIV in Large Circulating Water Channel. International Journal of Offshore and Polar Engineering, 11(4), pp.261-266.
5 Di Felice, F. Di Florio, D. Felli, M. & Romano G. P., 2004. Experimental Investigation of the Propeller Wake at Different Loading Conditions by Particle Image Velocimetry. Journal of Ship Research, 48(2), pp.168-190.
6 Felli, M. Di Florio, D. & Di Felice, F., 2002. Comparison between PIV and LDV Techniques in the Analysis of a Propeller Wake. Journal of Visualization, 5(3), p.210.   DOI   ScienceOn
7 Kim, W.J. Kim, D.H. Yoon, H.S. Moon, D.Y. & Van, S.H., 1997. Study on the Calibration of a Five-hole Pitot-tube for the Wake Measurement. Journal of the Society of Naval Architecture of Korea, 34(2), pp.11-19.   과학기술학회마을
8 Kim, W.J. Van, S.H. & Kim, D.H., 2001. Measurement of Flows around Modern Commercial Ship Models. Experiments in Fluids, 31(5), pp.567-578.   DOI   ScienceOn
9 Lee, S.J. Paik, B.G. Yoon, J.H. & Lee, C.M., 2004. Three-component Velocity Field Measurements of Propeller Wake Using a Stereoscopic PIV Technique. Experiments in Fluids, 36(4), pp.575-585.   DOI
10 Lee, J.Y. Paik, B.G. & Lee, S.J., 2009. PIV Measurements of Hull Wake Behind a Container Ship Model With Varying Loading Condition. Ocean Engineering, 36(5), pp.377-385.   DOI   ScienceOn
11 Paik, B.G. Lee, C.M. & Lee, S.J., 2004. PIV Analysis of Flow around a Container Ship Model with a Rotating Propeller. Experiments in Fluids, 36(6), pp.833-846.   DOI
12 Paik, B.G. Kim, K.Y. Lee, J.Y. & Lee, S.J. 2010. Analysis of Unstable Vortical Structure in a Propeller Wake Affected by a Simulated Hull Wake. Experiments in Fluids, 48(6), pp.1121-1133.   DOI
13 Van, S.H. Yoon, H.S. Lee, Y.Y. Park, I.R. Lee, C.J. & Kim, W.J. 2003. Measurement of Flow around KRISO 138K LNG Carrier Model. Journal of the Society of Naval Architects of Korea, 40(2), pp.1-10.   과학기술학회마을   DOI   ScienceOn
14 Paik, B.G. Lee, C.M. & Lee, S.J., 2005. Comparative Measurements on the Flow Structure of a Marine Propeller Wake between an Open Free Surface and Closed Surface Flows. Journal of Marine Science and Technology, 10(3), pp.123-130.   DOI   ScienceOn
15 Paik, B.G. Kim, J. Kim, K.Y. & Kim, K.S., 2007. Study on the Three Dimensional Flow Characteristics of the Propeller Wake Using PIV Techniques. Journal of the Society of Naval Architects of Korea, 44(3), pp.219-227.   과학기술학회마을   DOI   ScienceOn
16 International Towing Tank Conference(ITTC), 2008. Uncertainty Analysis Particle Image Velocimetry. 25th International Towing Tank Conference, Fukuoka, Japan, 14-20 September, 2008.