管道几何形状对轮缘驱动推进器流体力学性能影响的数值分析

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-09 DOI:10.1177/14750902241242248

Wen Jiang, jin Zhao, Tao Bian, Wuxin Yu

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引用次数: 0

摘要

本文基于计算流体动力学（CFD）方法，研究了风道几何形状对轮缘驱动推进器（RDT）流体动力学性能的影响。研究分析了风道厚度、风道前缘半径和风道后缘几何形状对推力系数、扭矩系数和效率的影响。结论表明，推力系数随风道厚度的减小而增大，但扭矩系数随风道厚度的增大而增大，因此效率随风道厚度的减小而增大。另一方面，风道前缘半径对 RDT 的推力系数没有显著影响。但 RDT 的扭矩系数随风道前缘半径的增大而减小，因此 RDT 的效率随风道前缘半径的增大而提高。综合比较表明，RDT 15-0.5 （风道厚度为 15 毫米，风道前缘半径与风道厚度之比为 0.5）在本文研究的 RDT 模型中具有最佳的流体动力学性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Numerical analysis of the effect of the duct geometry on the hydrodynamic performance of rim-driven thruster

This paper studies the effect of the duct geometry on the hydrodynamic performance of rim-driven thruster (RDT) based on Computational Fluid Dynamics (CFD) method. The effect of the thickness of the duct, the radius of the leading edge of the duct and the geometry of the trailing edge of the duct on the thrust coefficient, torque coefficient and efficiency are investigated and analyzed. The conclusion shows the thrust coefficient increases with the thickness of the duct decreasing, however the torque coefficient increases with the increase of the thickness of the duct, so the efficiency increasing with the decrease of the thickness of the duct. On the other hand, the radius of the leading edge of the duct has no significant effect on the thrust coefficient of the RDT. However, the torque coefficient of RDT decreases with the increase of the radius of the leading edge of the duct, so the efficiency of RDT increases with the increase of the radius of the leading edge of the duct. A comprehensive comparison shows that the RDT 15-0.5 (the duct thickness is 15 mm, the ratio of the radius of the leading edge of the duct and the duct thickness is 0.5) has the best hydrodynamic performance among the investigated RDT models in this work.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.