无空化条件下水下对转螺旋桨的空间脉动压力计算

IF 0.9 Q4 ENGINEERING, MECHANICAL

International Journal of Rotating Machinery Pub Date : 2018-02-19 DOI:10.1155/2018/2909546

L. Hou, A. Hu

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引用次数: 1

摘要

研究了非空化条件下逆旋螺旋桨的空间脉动压力场。通过基于低阶位势的板面法获得了CRP的水动力性能和叶片表面的压力分布，并利用该方法分析了CRP前后螺旋桨之间的水动力相互作用以及任意固体表面与螺旋桨之间的水动力干涉。利用给定的固体球面与螺旋桨之间的相互作用来模拟螺旋桨的空间FPF，并通过快速傅里叶变换在频域分析了螺旋桨在一转内产生的脉动压力。通过对两种螺旋桨的实测数据进行比较，验证了所提方法的有效性。计算了前后螺旋桨的FPFs，并与单螺旋桨的FPFs进行了比较。结果表明，与单螺旋桨相比，CRP产生的FPF更弱。

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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Spatial Fluctuating Pressure Calculation of Underwater Counter Rotating Propellers under Noncavitating Condition

The spatial fluctuating pressure field (FPF) of counter rotating propeller (CRP) under noncavitating condition is investigated. The hydrodynamic performance and pressure distributions on the blade surfaces are obtained through low-order potential-based panel method, which is also used to analyze the hydrodynamic interaction between the front and rear propellers of CRP as well as the hydrodynamic interference between any solid surface and propeller. The interaction between the given solid spherical surface and propeller is used to simulate the spatial FPF of propeller, and the fluctuating pressure induced by a propeller over one revolution is analyzed in frequency domain through fast Fourier transform. The method proposed is validated through two given propellers by comparing the calculation results with test data. The FPFs of the front and rear propellers are calculated and compared with that of the corresponding single propeller. The result shows that the CRP produces weaker FPF compared with the single propeller.

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来源期刊

International Journal of Rotating Machinery ENGINEERING, MECHANICAL-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： This comprehensive journal provides the latest information on rotating machines and machine elements. This technology has become essential to many industrial processes, including gas-, steam-, water-, or wind-driven turbines at power generation systems, and in food processing, automobile and airplane engines, heating, refrigeration, air conditioning, and chemical or petroleum refining. In spite of the importance of rotating machinery and the huge financial resources involved in the industry, only a few publications distribute research and development information on the prime movers. This journal is the first source to combine the technology, as it applies to all of these specialties, previously scattered throughout literature.