Study on the Contra-Rotating Propeller System Design and Full-Scale Performance Prediction Method
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참고문헌
초록
A ship's screw-propeller produces thrust by rotation and, at the same time, generates rotational flow behind the propeller. This rotational flow has no contribution to the generation of thrust, but instead produces energy loss. By recovering part of the lost energy in the rotational flow, therefore, it is possible to improve the propulsion efficiency. The contra-rotating propeller (CRP) system is the representing example of such devices. Unfortunately, however, neither a design method nor a full-scale performance prediction procedure for the CRP system has been well established yet. The authors have long performed studies on the CRP system, and some of the results from the authors' studies shall be presented and discussed.
Abstract
A ship's screw-propeller produces thrust by rotation and, at the same time, generates rotational flow behind the propeller. This rotational flow has no contribution to the generation of thrust, but instead produces energy loss. By recovering part of the lost energy in the rotational flow, therefore, it is possible to improve the propulsion efficiency. The contra-rotating propeller (CRP) system is the representing example of such devices. Unfortunately, however, neither a design method nor a full-scale performance prediction procedure for the CRP system has been well established yet. The authors have long performed studies on the CRP system, and some of the results from the authors' studies shall be presented and discussed.
참고문헌 (3)
- Min, K.-S., "Propeller Blade Section Design by Conformal Transformation Theory", The Proceedings of the International Workshop on the Propulsor Technology '91 (1991)
- Min, K.-S, "Design and Performance Prediction of a Contra-Rotating Propeller for 300,000 TDW Class Tanker", The Proceeding of PRADS '95 (1995)
- Van Manen J. D, "Model Tests on Contrarotating propellers", 7th Symposium on Naval Hydrodynamics (1968)