TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








The study of propellers efficiency in bollard-pull mode



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Year

 
2016

Issue

 
377

Volume

 
3

Pages

 
37-42

Caption

 
The study of propellers efficiency in bollard-pull mode

Authors

 
G. Kanevskii, А. Pustoshnii

Keywords

 
propellers, bollard-pull mode, efficiency

Summary

 
The speed of icebreakers operating in ice of ultimate thickness is 2-3 knots. In this case the mode of icebreaker propellers operation is close to bollard-pull mode. In bollard-pull mode the coefficient of efficiency and propulsion coefficient are equal to zero. In order to estimate the efficiency of main engines’ power conversion, one can use the value of achieved effective thrust per unit of delivered power. The results of study to determine the influence of propellers hydrodynamic characteristics and propeller-hull interaction coefficients on the value of effective thrust per unit of delivered power make it possible to take correct decisions and select the parameters of propellers and their position behind vessel’s hull.

Rubrics

 
Naval architecture

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ISSN (print) 2542-2324 / ISSN (online) 2618-8244

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