Pulsating pressure control of pumpjet propulsor ducts with groove structures

被引：0

作者：

Ye J.-M. ^{[1
]}

Wu Y.-R. ^{[1
]}

Sun D.-P. ^{[1
]}

Zou X.-Y. ^{[1
]}

机构：

[1] Department of Naval Architecture Engineering, Naval University of Engineering, Wuhan

来源：

Chuan Bo Li Xue/Journal of Ship Mechanics | 2024年 / 28卷 / 02期

关键词：

groove structure; pulsating pressure; pumpjet propulsor; tip vortex;

D O I：

10.3969/j.issn.1007-7294.2024.02.003

中图分类号：

学科分类号：

摘要：

Based on the concept of‘casing treatment’technology in aero-engine, a certain number of axial groove structures were set up in the inner wall of a pumpjet propulsor duct to weaken the tip vortex intensity, so as to reduce the pulsating pressure on the inner wall of the duct. By applying DES method and sliding mesh method, the flow around tip vortex field region of an elliptical hydrofoil was numerically simulated. The numerical calculation results are in good agreement with the experimental values, which verifies the reliability and applicability of the numerical calculation method.On this basis, the numerical simulations of the pumpjet propulsor with and without groove structures were carried out, and the effects of groove structure on the tip vortex core pressure, the pulsating pressure on the inner wall of the duct and hydrodynamic performance were compared and analyzed.The results show that the groove structures can significantly increase the tip vortex core pressure, reduce the amplitude of fluctuating pressure on the inner wall of the duct, and has little effect on the hydrodynamic performance. © 2024 China Ship Scientific Research Center. All rights reserved.

引用

页码：191 / 203

页数：12

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