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Article

Numerical Analysis on Hydrodynamic Characteristics of Surface Piercing Propellers in Oblique Flow

by 1,2, 1,* and 3
1
College of Naval Architecture and Ocean Engineering, Naval University of Engineering, Wuhan 430033, China
2
School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
3
Weichai Power Co., Ltd., Weifang 261061, China
*
Author to whom correspondence should be addressed.
Water 2019, 11(10), 2015; https://doi.org/10.3390/w11102015
Received: 26 July 2019 / Revised: 18 September 2019 / Accepted: 19 September 2019 / Published: 27 September 2019
(This article belongs to the Section Hydraulics and Hydrodynamics)
When a planing boat sails at the free surface, the posture changes drastically with time, so the surface piercing propellers usually work in oblique flow. In this paper, numerical simulations are performed to predict the performance of PSP-841B with Unsteady Reynolds Averaged Navier–Stokes (URANS) method coupling with sliding mesh and volume of fluid (VOF) method. The results show that the predicted thrust and torque coefficients of PSP-841B are in good agreement with the experimental data. It proves the present numerical schemes are feasible and validated. These schemes are applied in the simulations of SPP-1 that is installed to a planing craft. In oblique flow, the ventilation volume of SPP-1 increases dramatically, resulting in the postponed transition of vented status that changes from the fully dry to partially wetted; at the low advance ratios, the thrust and torque coefficients are less than that in the horizontal case. As the advance speed increases, the vented mode of SPP-1 varies from full ventilation to partially wet, and the forces and moments get closer to the results in the horizontal flow. In addition, the blockage effect of air cavity to the inflow in oblique flow is more significant than the results in the horizontal case. View Full-Text
Keywords: surface piercing propellers; oblique flow; hydrodynamic characteristics; numerical analysis surface piercing propellers; oblique flow; hydrodynamic characteristics; numerical analysis
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MDPI and ACS Style

Ren, Z.; Hua, L.; Ji, P. Numerical Analysis on Hydrodynamic Characteristics of Surface Piercing Propellers in Oblique Flow. Water 2019, 11, 2015. https://doi.org/10.3390/w11102015

AMA Style

Ren Z, Hua L, Ji P. Numerical Analysis on Hydrodynamic Characteristics of Surface Piercing Propellers in Oblique Flow. Water. 2019; 11(10):2015. https://doi.org/10.3390/w11102015

Chicago/Turabian Style

Ren, Zhen; Hua, Lin; Ji, Penghui. 2019. "Numerical Analysis on Hydrodynamic Characteristics of Surface Piercing Propellers in Oblique Flow" Water 11, no. 10: 2015. https://doi.org/10.3390/w11102015

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