Boundary Element Method Applied to Added Mass Coefficient Calculation of the Skewed Marine Propellers

Polish maritime research

Hassan GhassemiAmirkabir University of Technology, IranEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Ehsan YariAmirkabir University of Technology, IranEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Amirkabir University of Technology, Iran

关键词: Keywords: Added mass coefficient;    Boundary element method;    Skew marine propeller;   

DOI  :  10.1515/pomr-2016-0017

学科分类：工程和技术（综合）

来源: Politechnika Gdanska * Wydzial Oceanotechniki i Okretownictwa

【 摘 要 】

The paper mainly aims to study computation of added mass coefficients for marine propellers. A three-dimensional boundary element method (BEM) is developed to predict the propeller added mass and moment of inertia coefficients. Actually, only few experimental data sets are available as the validation reference. Here the method is validated with experimental measurements of the B-series marine propeller. The behavior of the added mass coefficients predicted based on variation of geometric and flow parameters of the propeller is calculated and analyzed. BEM is more accurate in obtaining added mass coefficients than other fast numerical methods. All added mass coefficients are nondimensionalized by fluid density, propeller diameter, and rotational velocity. The obtained results reveal that the diameter, expanded area ratio, and thickness have dominant influence on the increase of the added mass coefficients.

【 授权许可】

Unknown