Performance analysis and its implementation of water jet propeller equipped on motorboat

PENG Yun-long; WANG Yong-sheng; CHANG Shu-ping; JIN Shuan-bao

doi:10.16411/j.cnki.issn1006-7736.2013.02.030

Journal of Dalian Maritime University >

2013 , Vol. 39 >Issue 2: 13 - 17

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2013.02.030

Original Paper

Performance analysis and its implementation of water jet propeller equipped on motorboat

PENG Yun-long ,
WANG Yong-sheng ,
CHANG Shu-ping ,
JIN Shuan-bao

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College of Marine Power, Naval University of Engineering, Wuhan 430033, China

Received date: 2012-11-04

Online published: 2023-05-25

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Abstract

Computational fluid dynamics is applied to analyze the propulsive performance of a certain motorboat propelled by waterjet. The flow fields of a waterjet pump and a “waterjet+duct+grid+hull” system are calculated by Reynoldsaveraged NavierStokes (RANS) equations. Studying the behaviors of the flow fields with CFX postprocessing technology, some shortages are identified that eddy existes at the root of inducer blade and the back of the duct, the efficiency of propulsion also seems lower. For these problems, an optimized geometry of the duct is proposed to improve the propulsive efficiency of the waterjet propulsion system . Results show that an optimized duct can increase the propulsive efficiency by 6%.

Key words： motorboat; water jet propeller; performance analysis; computational fluid dynamics（CFD）

Cite this article

PENG Yun-long , WANG Yong-sheng , CHANG Shu-ping , JIN Shuan-bao . Performance analysis and its implementation of water jet propeller equipped on motorboat[J]. Journal of Dalian Maritime University, 2013 , 39(2) : 13 -17 . DOI: 10.16411/j.cnki.issn1006-7736.2013.02.030

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