An estimation method of full scale performance for pulling type podded propellers

International Journal of Naval Architecture and Ocean Engineering

Kim Hyoung-Tae¹  Choi Jung-Kyu¹  Park Hyoung-Gil² 

[1] Department of Naval Architecture and Ocean Engineering, Chungnam National University (CNU), Daejeon, Korea;Samsung Ship Model Basin (SSMB), Samsung Heavy Industries Co., Ltd., Daejeon, Korea;

关键词: Pod propeller;    Pod housing;    Full scale;    Drag velocity ratio;    Drag coefficient ratio;   

DOI  :  10.2478/ijnaoe-2013-0225

来源: DOAJ

【 摘 要 】

This paper presents a new estimation method of full scale propulsive performance for the pulling type podded propeller. In order to estimate the drag of pod housing, a drag velocity ratio, which includes the effects of podded propeller loading and Reynolds number, is presented and evaluated through the comparison of model test and numerical analysis. By separating the thrust of propeller blade and the drag of pod housing, extrapolation method of pod housing drag to full scale is deduced, and correction method of propeller blade thrust and torque to full scale is presented. This study utilized the drag coefficient ratio of the pod housing as a measure for expanding it to full scale, but in order to increase the accuracy of performance evaluation, additional study is necessary on the method for the full scale expansion via separating the drag of pod body, strut and fin which consist the pod housing.

【 授权许可】

Unknown