PRESENTING A MATHEMATICAL MODEL FOR ANALYSIS OF THE EFFECTS OF WARP FORM ON THE PERFORMANCE OF PLANING HULLS

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GHADIMI PARVIZ; TAVAKOLI SASAN; DASHTIMANESH ABBAS

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Journal: IRANIAN JOURNAL OF MARINE TECHNOLOGY Year:2017 | Volume:4 | Issue:1 Page(s): 39-52

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Title

PRESENTING A MATHEMATICAL MODEL FOR ANALYSIS OF THE EFFECTS OF WARP FORM ON THE PERFORMANCE OF PLANING HULLS

Author(s)

GHADIMI PARVIZ | TAVAKOLI SASAN | DASHTIMANESH ABBAS | Issue Writer Certificate

Keywords

PLANING HULLSQ2

HYDRODYNAMICSQ3

DEADRISE VARIATIONQ1

RUNNING ATTITUDESQ1

CALM WATERQ1

Abstract

Designing a proper hull-form has always been considered an important issue in HYDRODYNAMICS of planing boats. Any small variation of geometry may result in significant changes in boat performance. In the current paper, it is attempted to develop a mathematical model for prediction of the performance of planing boats with variable deadrise in longitudinal direction. To accomplish this task, the 2.5D theory and water impact problem are utilized. Effects of DEADRISE VARIATION from one section to another has been taken into account in the equations. Hydrodynamic, hydrostatic, and drag forces are determined. A new equation is extracted for computing the whisker spray area. By using the current method, effects of DEADRISE VARIATION on the hydrodynamic performance of a planing boat are examined. It is concluded that a slight slope variation of deadrise angle may positively affect the performance and lead to a smaller trim angle and resistance in comparison with the prismatic hull-forms.

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APA: Copy

GHADIMI, PARVIZ, TAVAKOLI, SASAN, & DASHTIMANESH, ABBAS. (2017). PRESENTING A MATHEMATICAL MODEL FOR ANALYSIS OF THE EFFECTS OF WARP FORM ON THE PERFORMANCE OF PLANING HULLS. IRANIAN JOURNAL OF MARINE TECHNOLOGY, 4(1 ), 39-52. SID. https://sid.ir/paper/251904/en

Vancouver: Copy

GHADIMI PARVIZ, TAVAKOLI SASAN, DASHTIMANESH ABBAS. PRESENTING A MATHEMATICAL MODEL FOR ANALYSIS OF THE EFFECTS OF WARP FORM ON THE PERFORMANCE OF PLANING HULLS. IRANIAN JOURNAL OF MARINE TECHNOLOGY[Internet]. 2017;4(1 ):39-52. Available from: https://sid.ir/paper/251904/en

IEEE: Copy

PARVIZ GHADIMI, SASAN TAVAKOLI, and ABBAS DASHTIMANESH, “PRESENTING A MATHEMATICAL MODEL FOR ANALYSIS OF THE EFFECTS OF WARP FORM ON THE PERFORMANCE OF PLANING HULLS,” IRANIAN JOURNAL OF MARINE TECHNOLOGY, vol. 4, no. 1 , pp. 39–52, 2017, [Online]. Available: https://sid.ir/paper/251904/en

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