Effect of bow spray strips and Ω-type freeboard on high-speed boats

WEI Chengzhu; LI Yinghui; YI Hong

doi:10.3969/j.issn.1673-3185.2017.01.003

Volume 12 Issue 1

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WEI Chengzhu, LI Yinghui, YI Hong. Effect of bow spray strips and Ω-type freeboard on high-speed boats[J]. Chinese Journal of Ship Research, 2017, 12(1): 14-20. doi: 10.3969/j.issn.1673-3185.2017.01.003

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Effect of bow spray strips and Ω-type freeboard on high-speed boats

doi: 10.3969/j.issn.1673-3185.2017.01.003

1.
State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2.
Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai 200240, China

Received Date: 2016-07-14
Available Online: 2016-12-28
Publish Date: 2017-01-07

Abstract

This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A high-speed boat may encounter severe wave-making at the bow and become wetter at high speed. Some measures can be taken to overcome these disadvantages. In order to compare the effect of bow spray strips and Ω-type freeboards on a high-speed boat, hull wetness, resistance, hull motion, stability and the restoring moment of the heel at high speed of models with these two kinds of auxiliaries were calculated and measured. CFD methods and model tests were adopted. Both of these two auxiliaries can reduce hull wetness, and the model with a Ω-type freeboard has a better initial stability and larger restoring moment of the heel at high speed. A free running model test also indicates that the Ω-type freeboard has a fine performance.
- high-speed boat,
- Ω-type freeboard,
- hull wetness,
- stability,
- restoring moment of heel,
- numerical tank test

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References(11)

References

[1]	邵世明, 王云才, 陈良权.首压浪条对高速排水型艇航行性能的影响[J].上海交通大学学报, 1980(3):83-91. http://www.cnki.com.cn/Article/CJFDTOTAL-SHJT198003006.htm SHAO S M, WANG Y C, CHEN L Q. The effects of bow spray strips on resistance and seakeeping qualities of high-speed displacement hull[J]. Journal of Shang-hai Jiaotong University, 1980(3):83-91(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-SHJT198003006.htm
[2]	THOMPSON A. Boat:6116180A[P]. 2000-09-12.
[3]	魏成柱, 李英辉, 易宏.楔形压浪体在内倾式船首中的应用研究[J].船舶工程, 2013, 35(1):9-12. http://www.cnki.com.cn/Article/CJFDTOTAL-CANB201301004.htm WEI C Z, LI Y H, YI H. Application research of an-ti-green-water wedge to intilted bow[J]. Ship Engi-neering, 2013, 35(1):9-12(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-CANB201301004.htm
[4]	王健, 刘旌扬, 魏成柱, 等.新概念穿梭艇自航模操控系统试验研究[J].中国舰船研究, 2016, 11(1):95-101. http://www.ship-research.com/CN/abstract/abstract1506.shtml WANG J, LIU J Y, WEI C Z, et al. Experimental study on the control system for the free-running model test of a new concept shuttle vessel[J]. Chinese Journal of Ship Research, 2016, 11(1):95-101(in Chinese). http://www.ship-research.com/CN/abstract/abstract1506.shtml
[5]	WEI C Z, LI Y H, YI H. CFD and EFD based studies of hull wetness of fast Mono-WPC[C]//36th Interna-tional Conference on Ocean, Offshore and Arctic Engi-neering (OMAE2016). Busan, South Korea, 2016.
[6]	魏成柱, 毛立夫, 李英辉, 等.单体半滑行穿浪船船型与静水航行性能[J].中国舰船研究, 2015, 10(5):16-21. http://www.ship-research.com/CN/abstract/abstract1422.shtml WEI C Z, MAO L F, LI Y H, et al. Analysis of the hull form and sailing characters in calm water of a semi-planing wave-piercing boat[J]. Chinese Journal of Ship Research, 2015, 10(5):16-21(in Chinese). http://www.ship-research.com/CN/abstract/abstract1422.shtml
[7]	LARSSON L, STERN F, VISONNEAU M. Numerical ship hydrodynamics:an assessment of the Gothenburg 2010 workshop[M]. Netherlands:Springer, 2014.
[8]	魏成柱.穿梭艇性能特征与船型优化[D].上海:上海交通大学, 2013. WEI C Z. The shuttle vessel performance characteris-tics and hull form optimization[D]. Shanghai:Shang-hai Jiao Tong University, 2013(in Chinese).
[9]	MENTER F R. Two-equation eddy-viscosity turbu-lence models for engineering applications[J]. AIAA Journal, 1994, 32(8):1598-1605. doi: 10.2514/3.12149
[10]	HIRT C W, NICHOLS B D. Volume of fluid (VOF) method for the dynamics of free boundaries[J]. Jour-nal of Computational Physics, 1981, 39(1):201-225. doi: 10.1016/0021-9991(81)90145-5
[11]	YOUSEFI R, SHAFAGHAT R, SHAKERI M. High-speed planing hull drag reduction using tunnels[J]. Ocean Engineering, 2014, 84:54-60. doi: 10.1016/j.oceaneng.2014.03.033