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Volume 16, Issue 32 (11-2020)                   marine-engineering 2020, 16(32): 59-71 | Back to browse issues page


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Fasihi Karami H, Sadaghi S M. Estimating the squat of different vessel types in the design of Iranian ports waterways using empirical relations. marine-engineering. 2020; 16 (32) :59-71
URL: http://marine-eng.ir/article-1-833-en.html
1- Road, Housing & Urban Development Research Center
Abstract:   (594 Views)
Squat is a steady downward displacement consisting of a translation and rotation due to the flow of water past the moving hull. Nowadays, with the considerable increases in the size and speed of ships, the importance of accurate determination of the squat parameter in the design of waterways has increased. Squat has an important role both in economic costs of design and construction of new waterways and safe movement of ships in existing waterways. Various methods can be used for squat estimation including empirical relations, laboratory test models and numerical modeling. In this paper, based on PIANC recommendations, different empirical formulas are used to estimate the squat of the incoming ships to some of the main ports of Iran on the horizon of 1404. Finally, by concluding the results, suggestions are given for calculating the squat of different vessel types in the design of Iranian ports waterways.
Full-Text [PDF 1277 kb]   (159 Downloads)    
Type of Study: Research Paper | Subject: Ship Hydrodynamic
Received: 2020/06/6 | Accepted: 2020/09/16

References
1. PIANC, "Harbour Approach Channels Design Guidelines," 2014.
2. B. Barrass, Ship Squat and Interaction, UK: Withersby Publishing & Seamanship, 2009.
3. E. Tuck, "Shallow Water Flows Past Slender Bodies," Fluid Mechanics, vol. 26, no. 1, pp. 81-95, 1966. [DOI:10.1017/S0022112066001101]
4. Tuck, E.O;Taylor, P.J, "Shallow Water Problems in Ship Hydrodynamics," in Proceedings 8th Symposium on Naval Hydrodynamics, 1970.
5. PIANC, ""Approach Channels: A Guide for Design," Final Report of the Joint PIANC-IAPH Working Group II-30 in cooperation with IMPA and IALA, Brussels, 1997.
6. J. Hooft, "The behaviour of a ship in head waves at restricted water depths," International Ship Building Progress, vol. 11, 1974.
7. Beck, R.F; Newman, J.N., Tuck, E.O. , "Hydrodynamic Forces on Ships in Dredged Channels.," Journal of Ship Research, vol. 9, no. 03, 1975.
8. O. Huuska, "On the evaluation of underkeel clearances in finnish waterways," Helsinki University of Technology, Ship Hydromechanics Laboratory, Otaniemi, Finland, 1976.
9. Eryuzlu.N. E. ; Hausser.R, "Experimental investigations into some aspects of large Ships Navigation in restricted Waterways," Proc. Symp. Asp. Navi. Const., vol. 2, 1978.
10. Eryuzlu, N.E; Cao, Y.L., D'agnolo, F. , "Underkeel Requirements for Large Vessels in Shallow Waterways," in Proceedings 28th International Navigation Congress, PIANC, Spain, 1994.
11. T. &. PMO, "Iranian Marine Structures and Ports Design guideline," PBO, Tehran, 1385.
12. PMO,"Coastal Structures Design Instructions," PBO, Tehran, 1392.
13. "Technical Standards and Commentaries for port and harbour facilities," The Oveseas costal area developement institute, JAPAN, 2002.
14. "Maritime works - Part 1-1: General - Code of practice for planning and design for operations," BSI Standards , 2013.
15. Local statistics of Port and Maritime Organization, Sistan and Baluchestan Province Branch,1398

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