Write your message
Volume 15, Issue 30 (1-2020)                   Marine Engineering 2020, 15(30): 69-79 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Yousefifard M, Maboodi A. Evaluation of the effect of stern wedge on instability control and reduction of the resistance of a semi-planing catamaran. Marine Engineering 2020; 15 (30) :69-79
URL: http://marine-eng.ir/article-1-751-en.html
Evaluation of the effect of stern wedge on instability control and reduction of the resistance of a semi-planing catamaran
Mahdi Yousefifard * 1, Ashkan Maboodi1
1- Babol Noshirvani University of Technology
Abstract:   (3703 Views)
In this research, the main focus is on monitoring the dynamic instability created in a semi-planing catamarn and reducing the amplitude of these movements using a stern wedge. This is done using the model analysis in different Froude numbers in both the original and modified body conditions. Numerical analysis is also provided by solving the Reynolds-averaged Navier–Stokes equations and OpenFOAM open-source code. In addition to verifying the numerical solution method based on experimental data, it can be seen that the installation of a stern wedge of the ship has a very positive effect on reducing the range of dynamic motions in calm water. The effect of this motion decrease can also be seen in the resistance-speed chart. The most important achievement of this research is the creation of a numerical tank for simulating dynamic motions and accurate recording of details of fluid flow around the planing and semi- planing hulls. The result of the stern wedge installation and numerical and experimental analysis is a 12 percent reduction in ship resistance at design speed. 
Keywords: Catamaran, Semi-planing hull, Stern wedge, Hydrodynamics instability
Full-Text [PDF 1142 kb]   (1743 Downloads)    
Type of Study: Research Paper | Subject: Ship Hydrodynamic
Received: 2019/07/25 | Accepted: 2019/11/26
References
1. Karafiath, G., Fisher, S.C., (1987), The effect of stern wedges on ship powering performance. Naval Engineering Journal, May, p.27-11. [DOI:10.1111/j.1559-3584.1987.tb02113.x]
2. Bojovic, P., Sahoo, P.K., (2004) Effect of stern wedges and advanced spray rail system on calm water resistance of high-speed displacement hull forms, Proceedings of Pacific 2004 International Maritime Conference; 2004 February 3-5; Sydney.
3. Jadmiko, E., Syarif, I., Arif, L., (2018), Comparison of Stern Wedge and Stern Flap on Fast Monohull Vessel Resistance, International Journal of Marine Engineering Innovation and Research, Vol.3(2), p.41-9. [DOI:10.12962/j25481479.v3i2.4601]
4. Salas, M., Tampier, G., (2013), Assessment of appendage effect on forward resistance reduction, Ship Science & Technology, Vol.7(13), p.37-9. [DOI:10.25043/19098642.82]
5. Jangam, S., Subramanian, V.A., Krishnankutty, P., (2019), Computational Study on the Hydrodynamic Effects of Interceptors Fitted to Transom of Planing Vessel, Proceedings of the Fourth International Conference in Ocean Engineering (ICOE2018), Lecture Notes in Civil Engineering 22; 2019 Jan 18; Singapore. [DOI:10.1007/978-981-13-3119-0_39]
6. John, Sh., Khan, M.D.K., Praveen, P.C., Korulla, M., Panigrahi, P.K., (2011), Hydrodynamic performance enhancement using stern wedges, stern flaps and interceptors for ships, International Conference on Ship and Offshore Technology; 2011Dec 8-9; INDIA Kharagpur.
7. Mansoori, M., Fernandes, A.C., Ghassemi, H., (2017), Interceptor design for optimum trim control and minimum resistance of planning boats, Applied Ocean Research, Vol.69, p.100-6. [DOI:10.1016/j.apor.2017.10.006]
8. Song, K., Guo, Ch., Gong, J., Li, P., Wang, L., (2018), Influence of interceptors, stern flaps, and their combinations on the hydrodynamic performance of a deep-vee ship, Ocean Engineering, Vol.170, p.306-15. [DOI:10.1016/j.oceaneng.2018.10.048]
9. Day, A.H., Cooper, Ch., (2011), An experimental study of interceptors for drag reduction on high-performance sailing yachts, Ocean Engineering, Vol.38, p.983-12. [DOI:10.1016/j.oceaneng.2011.03.006]
10. Park, J.Y., Choi, H., Lee, J., Choi, H., Woo, J., Kim, S., et al., (2019), An experimental study on vertical motion control of a high-speed planning vessel using a controllable interceptor in waves, Ocean Engineering, Vol.173, p.841-10. [DOI:10.1016/j.oceaneng.2019.01.019]
11. Mansoori, M., Fernandes, A.C., (2016), The interceptor hydrodynamic analysis for controlling the porpoising instability in high speed, Applied Ocean Research, Vol.57, p.40-12. [DOI:10.1016/j.apor.2016.02.006]
12. Avci, A.G., Barlas, B., (2019), An experimental investigation of interceptors for a high speed hull, International Journal of Naval Architecture and Ocean Engineering, Vol.11(1), p.256-18. [DOI:10.1016/j.ijnaoe.2018.05.001]
13. Mansoori, M., Fernandes, A.C., (2015), Hydrodynamics of the interceptor on a 2-D flat plate by CFD and experiments, Journal of Hydrodynamics, Vol.27(6), p.919-15. [DOI:10.1016/S1001-6058(15)60555-8]
14. Ghadimi, P., Sajedi, S.M., Tavakoli, S., (Articles in Press), Experimental Study of the Wedge Effects on the Performance of a Hard-chine Planing Craft in Calm Water, Scientia Iranica, DOI: 10.24200/sci.2018.20607. [DOI:10.24200/sci.2018.20607]
15. Jasak, H., (1996), Error Analysis and Estimation for the Finite Volume Method with Applications to Fluid Flows, Imperial College, London, UK (Ph.D.thesis.
16. Rusche, H., (2002), Computational Fluid Dynamics of Dispersed Two-phase Flows at High Phase Fractions, Imperial College, London, UK (Ph.D.thesis).
17. Berberović, E., Van Hinsberg, N., Jakirlić, S., Roisman, I., Tropea, C., (2009), Drop impact onto a liquid layer of finite thickness: dynamics of the cavity evolution, Physical Review E., Vol.79(3), p.36306. [DOI:10.1103/PhysRevE.79.036306]
18. Menter, F.R., (2009), Review of the shear-stress transport turbulence model experience from an industrial perspective, International Journal of Computational Fluid Dynamics, Vol.23(4), p.305-12. [DOI:10.1080/10618560902773387]
19. ITTC, Recommended Procedures. General Guideline for Uncertainty Analysis in Resistance Tests. 7.5-02-02-02, 2014.
Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons License
International Journal of Maritime Technology is licensed under a

Creative Commons Attribution-NonCommercial 4.0 International License.