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Citation:
　Dagang Zhao,Chunyu Guo,Yumin Su,et al.Experimental Study on Hydrodynamics of L-type Podded Propulsor in Straight-ahead Motion and Off-Design Conditions[J].Journal of Marine Science and Application,2017,(1):48-59.[doi:10.1007/s11804-017-1402-1]
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Experimental Study on Hydrodynamics of L-type Podded Propulsor in Straight-ahead Motion and Off-Design Conditions

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Title:
Experimental Study on Hydrodynamics of L-type Podded Propulsor in Straight-ahead Motion and Off-Design Conditions
Author(s):
Dagang Zhao1;  Chunyu Guo1;  Yumin Su1;  Pengfei Dou1; 2;  Tao Jing1
Affilations:
Author(s):
Dagang Zhao1;  Chunyu Guo1;  Yumin Su1;  Pengfei Dou1; 2;  Tao Jing1
1. School of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;
2. National Engineering Research Center of Shanghai ship Design Technology, Shanghai 200080, China
Keywords:
L-type podded propulsor; off-design condition; flow field; particle image velocimetry; propeller; hydrodynamic; experimental test
分类号:
-
DOI:
10.1007/s11804-017-1402-1
Abstract:
Experimental tests were conducted to evaluate the hydrodynamic performance of an L-type podded propulsor in straight-ahead motion and off-design conditions using an open-water measuring instrument developed by the authors for podded propulsors, a ship model towing tank, and under water particle image velocimetry (PIV) measurement systems. Under the three types of conditions, the main parameters of an L-type podded propulsor were measured, including the propeller thrust and torque, as well as the thrust, side force, and moment of the whole pod unit. In addition, the flow field on the section between the propeller and the strut was analyzed. Experimental results demonstrate that the dynamic azimuthing rate and direction and the turning direction affect the forces on the propeller and the whole pod unit. Forces are asymmetrically distributed between the left and right azimuthing directions because of the effect of propeller rotation. The findings of this study provide a foundation for further research on L-type podded propulsors.

References:

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Memo

Memo:
Received date:2016-11-29;Accepted date:2017-01-04。
Foundation item:Supported by the National Natural Science Foundation of China (Grant Nos. 41176074, 51379043 and 51409063)
Corresponding author:Chunyu Guo,Email:guochunyu_heu@outlook.com
Last Update: 2017-03-25