Numerical analysis of surface piercing propeller cup section's water exit and entry

被引：0

作者：

Wang, Chao ^{[1
]}

Wei, Hao ^{[1
]}

Chang, Shengming ^{[2
]}

Sun, Cong ^{[1
]}

机构：

[1] College of Shipbuilding Engineering, Harbin Engineering University, Harbin

[2] National Key Laboratory on Vibration & Noise, China Ship Scientific Research Center, Wuxi

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2024年 / 45卷 / 09期

关键词：

advance coefficient; cup section; flow field characteristics; free liquid surface; hydrodynamic characteristics; numerical simulation; surface piercing propeller; ventilation phenomenon;

D O I：

10.11990/jheu.202209037

中图分类号：

学科分类号：

摘要：

To analyze the mechanism of a surface piercing propeller cup section′s water exit and entry, the cup section of the 841-B surface piercing propeller was modeled, and a reliable numerical method was established by solving the RANS equation to simulate the water entry process of the cup section by combining the standard k-ε turbulence model, VOF method, and overlapping grid technique. On this basis, the mechanism of the section′s water exit and entry was studied, and the free liquid surface form, ventilation cavity, flow field form, and mechanical characteristics of the cup section under different advance coefficients were analyzed. The results showed that the water exit and entry process of the cup section was unsteady, with strong nonlinear change of the free liquid surface. During water entry, the pressure dropped and inhaled air to form a ventilation cavity. When the next section entered water, the liquid surface was more affected. Increasing the advance coefficient inhibited this ventilation phenomenon. In addition, the change in the ventilation cavity affected the mechanical characteristics of the surface piercing propeller. © 2024 Editorial Board of Journal of Harbin Engineering. All rights reserved.

引用

页码：1662 / 1669

页数：7

共 13 条

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