全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
-  2018 

URANS SIMULATION OF A PARTIALLY SUBMERGED PROPELLER OPERATING UNDER THE BOLLARD CONDITION

DOI: 10.21278/brod69107

Keywords: Propeller, Free surface, Partially submerged propeller, Thrust loss, Air ventilation, Bollard condition

Full-Text   Cite this paper   Add to My Lib

Abstract:

Sa?etak The performance of a partially submerged propeller under the bollard condition was assessed using numerical simulations based on URANS. The simulations were performed with varying propeller rotating speed and submergence depth. The propeller rotating speed was varied from 2 rps to 8 rps with the interval of 2 rps at the submergence depths of h/R=0.0,0.5, and 1.0. Here, h is the submergence depth from the free surface to the propeller shaft center and R is the radius of the propeller. The thrust and torque losses were compared with the thrust and torque in the deep water condition. The thrust and torque decreased rapidly with increasing propeller rotating speed. The thrust and torque ratios were compared with the empirical formula showing generally good agreement. The hydrodynamic characteristics around the partially submerged propeller were investigated using numerical simulations

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133