- Volume 22 Issue 1
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A Study on the Hydrodynamic Effect of Biofouling on Marine Propeller
선박 프로펠러 표면의 생물부착물이 프로펠러 유체역학적 성능에 미치는 영향에 관한 연구
- Received : 2015.10.23
- Accepted : 2016.02.25
- Published : 2016.02.28
The effect of propeller surface roughness condition on ship performance is very significant even the influence of fouling on propeller performance is not well established compared to biofouling on the hull surface. In present study, predictions of open water efficiency of propeller are made for three different fouling conditions, and its application is given for the 7m full-scale propeller of a medium-size tanker in open water condition. The numerical predictions of propeller efficiency loss due to fouling are based on the results from laboratory-scale drag measurements and boundary layer similarity law analysis presented in Schultz (2007) together with an in-house unsteady lifting surface code which is an appropriate tool to predict the effect of propeller surface roughness on propeller performance. The results of this study indicate that the subject propeller with the small calcareous fouling (
Ship performance;Biofouling;Surface roughness;Open water efficiency;Boundary layer
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