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Calculation of fluctuating pressure directivity of counter rotating propeller under non-cavitating condition

Abstract: In order to calculate the fluctuating pressure field directivity of underwater counter rotating propeller, the surface panel method was adopted to calculate the spatial fluctuating pressure field and its directivity of the countra rotating propeller. The hydrodynamic interference between the two propellers of the counter rotation propeller as well as the interference between given solid spherical surface panel and propeller were considered through induced velocities. The fluctuating pressure produced by the propeller rotating for one cycle was analyzed in frequency domain through Fourier transform. Instance study shows that CRP produces weaker fluctuating pressure field comparing with the single propeller, and can improve the stern vibration effectively.<br/>
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    对转桨无空泡脉动压力指向性计算分析.pdf [Fulltext]
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