Effects of Bionic Special Configuration on Hydrofoil Surface on Cavitation Suppression

WANG Yanyan; ZHAO Weiguo; HAN Xiangdong; FAN Pengjun; LIU Zailun; HU Jianqi

doi:10.7652/xjtuxb202209002

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Effects of Bionic Special Configuration on Hydrofoil Surface on Cavitation Suppression

更新时间：2025-07-09

- Effects of Bionic Special Configuration on Hydrofoil Surface on Cavitation Suppression
- Vol. 56, Issue 9, Pages: 10-19(2022)
- 作者机构：
  
  1. 兰州理工大学能源与动力工程学院,兰州,730050
  2. 南昌理工学院建筑工程学院,南昌,330044
  3. 机械工业兰州石油化工设备检测所有限公司,兰州,730070
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202209002
  CLC： O359
- Online First：10 September 2022，
  
  Published：2022
- 稿件说明：
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WANG Yanyan, ZHAO Weiguo, HAN Xiangdong, et al. Effects of Bionic Special Configuration on Hydrofoil Surface on Cavitation Suppression[J]. 2022, 56(9): 10-19.
DOI：

WANG Yanyan, ZHAO Weiguo, HAN Xiangdong, et al. Effects of Bionic Special Configuration on Hydrofoil Surface on Cavitation Suppression[J]. 2022, 56(9): 10-19. DOI： 10.7652/xjtuxb202209002.

摘要

为探究翼型表面仿生特殊构型对空化抑制的影响

本文采用修正的SST k-ω湍流模型并结合Zwart-Gerber-Belamri空化模型对常规与表面含仿生特殊构型的NACA0015翼型的非定常空化绕流进行数值仿真

确定仿生特殊构型的影响且揭示相应的机理。研究结果表明:对于表面含仿生特殊构型的翼型

相同频率下的升阻力幅值明显小于常规翼型下的且幅值整体波动较弱

同时平均升阻比增大; 与常规翼型下的相比

空泡周期性演化发展过程变弱且空泡体积也减小; 表面含仿生特殊构型翼型下的空化柔度在正负值间变化的程度较常规翼型下的弱

空化柔度小于0所对应的时间显著减少仿生特殊构型显著抑制空化。低压区与涡旋分布范围均小于常规翼型下的

湍动能分布范围减小且强度减弱

在其综合影响下实现抑制空化的目的

流场因而变稳定。

Abstract

To investigate effects of bionic special configuration on hydrofoil surface on cavitation suppression

unsteady cavitating flow around general NACA0015 hydrofoil and the hydrofoil with bionic special configuration on the surface is numerically simulated via the combination of modified SST k-ω turbulence model and Zwart-Gerber-Belamri cavitation model. Effects of bionic special configuration are determined and corresponding mechanisms are revealed. The results show that compared with the general hydrofoil

the hydrofoil with bionic special configuration on the surface has obviously lower amplitudes of lift and drag under the same frequency

weaker overall amplitude fluctuation

and greater average lift-drag ratio

that compared with the general hydrofoil

the hydrofoil with bionic special configuration on the surface has weaker periodic evolution of cavitation and smaller volume of cavitation

that compared with the general hydrofoil

the hydrofoil with bionic special configuration on the surface has a weaker variation flexibility of cavitation between positive and negative values and significantly fewer moments that cavitation flexibility was less than 0. Cavitation is remarkably suppressed by bionic special configuration. Low-pressure regions and distribution scopes of vortices are smaller than those of the general hydrofoil. For turbulent kinetic energy

the distribution range becomes smaller and the intensity is weaker. Under the comprehensive effects

aim of suppression on cavitation is achieved and therefore

the flow fields become stable.

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Keywords

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