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Citation:
　Parviz Ghadimi,Sasan Tavakoli,Abbas Dashtimanesh and Arya Pirooz.Developing a Computer Program for Detailed Study ofPlaning Hull’s Spray Based on Morabito’s Approach[J].Journal of Marine Science and Application,2014,(4):402-415.[doi:10.1007/s11804-014-1280-8]
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Developing a Computer Program for Detailed Study ofPlaning Hull’s Spray Based on Morabito’s Approach

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Title:
Developing a Computer Program for Detailed Study ofPlaning Hull’s Spray Based on Morabito’s Approach
Author(s):
Parviz Ghadimi;  Sasan Tavakoli;  Abbas Dashtimanesh and Arya Pirooz
Affilations:
Author(s):
Parviz Ghadimi;  Sasan Tavakoli;  Abbas Dashtimanesh and Arya Pirooz
1. Department of Marine Technology, Amirkabir University of Technology, Tehran 15875-4413, Iran2. Faculty of Engineering, Persian Gulf University, Bushehr 7516913817, Iran3. International Branch, Amirkabir University of Technology, Tehran 15875-4413, Iran
Keywords:
spray;  prismatic planing hull;  mathematical modeling;  water spray;  parametric study
分类号:
-
DOI:
10.1007/s11804-014-1280-8
Abstract:
Recently, Morabito (2010) has studied the water spray phenomena in planing hulls and presented new analytical equations. However, these equations have not been used for detailed parametric studies of water spray around planing hulls. In this paper, a straight forward analysis is conducted to apply these analytical equations for finding the spray geometry profile by developing a computer program based on presented computational process. The obtained results of the developed computer program are compared against existing data in the literature and favorable accuracy is achieved. Parametric studies have been conducted for different physical parameters. Positions of spray apex are computed and three dimensional profiles of spray are examined. It is concluded that spray height increases by an increase in the speed coefficient or the deadrise angle. Ultimately, a computational process is added to Savitsky’s method and variations of spray apex are computed for different velocities. It is shown that vertical, lateral, and longitudinal positions of spray increase as the craft speed increases. On the other hand, two new angles are defined in top view and it is concluded that they have direct relation with the trim angle. However, they show inverse relation with the deadrise angle.

References:

Green AE (1935). The gliding of a flat plate on a stream of finite depth part I. Mathematical Proceedings of the Cambridge Philosophical Society, 31, 584-603.

Green AE (1936). The gliding of a flat plate on a stream of finite depth part II. Mathematical Proceedings of the Cambridge Philosophical Society, 32, 67-85.
Kihara H (2006). A computing method for the flow analysis around a prismatic planing hull. 5th International Conference on High Performance Marine Vehicles, Tasmania, Australia, 262-272.
Kikuhara S (1960). A study of spray generated by seaplane hulls. Journal of the Aero-Space Science, 27(6), 415-428.
Lattore R, Ryan S (1989). Dimensional and similitude analysis of spray blister sheet from prismatic planing models. Ocean Engineering, 16(1), 71-83.
Locke FWS (1943). A method for making qualitative studies of the main spray characteristics of flying-boat hull models. Davidson Laboratory, Hoboken, United States, Report No. 232.
Morabito MG (2010). On the spray and bottom pressure on planing surfaces. PhD thesis, Stevens Institute of Technology, Hoboken, United States.
Payne PR (1986). On the spray sheet thickness of a planing wedge hull. Ocean Engineering, 13(1), 1-36.
Payne PR (1989). Dimensional and similitude analysis of spray blister sheet from prismatic planing model. Ocean Engineering, 16(1), 71-83.
Pierson JD, Leshnover S (1950). A study of the flow, pressures, and loads pertaining to prismatic vee-planing surfaces. Davidson Laboratory, Hoboken, United States, Report No. 382.
Savitsky D (1964). Hydrodynamic design of planing hulls. Marine Technology, 1(1), 71-95.
Savitsky D, Breslin J (1958). On the main spray generated by planing surfaces. Davidson Laboratory, Stevens Institute of Technology, Hoboken, United States, Report No. 678.
Savitsky D, DeLorme MF, Datla R (2007). Inclusion of whisker spray in performance prediction method for high speed planing hulls. Marine Technology, 44(1), 35-67.
Savitsky D, Morabito MG (2011). Origin and characteristics of the spray patterns generated by planing hulls. Journal of Ship Production and Design, 27(2), 63-83.
Sottorf W (1932). Experiments with planing surfaces. NACA Technical Memorandum, No 739.
Wagner H (1932). Phenomena associated with impacts and sliding on liquid surfaces. NACA Translation.
Zarnick EE (1978). A non-linear mathematical model of motions of a planing boat in regular waves. David Taylor Naval Ship Research and Development Center, Bethesda, United States, Technical Report No. DTNSRDC-78/032.

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Last Update: 2014-12-09