Effect of Hub-to-tip Ratio on Performance of High Speed Pump Jet Propulsor for Undersea Vehicle <i>GAN Gongchang</i>

doi:10.11993/j.issn.2096-3920.2024-0091

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Effect of Hub-to-tip Ratio on Performance of High Speed Pump Jet Propulsor for Undersea Vehicle GAN Gongchang[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0091

Citation:

Effect of Hub-to-tip Ratio on Performance of High Speed Pump Jet Propulsor for Undersea Vehicle GAN Gongchang[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0091

Effect of Hub-to-tip Ratio on Performance of High Speed Pump Jet Propulsor for Undersea Vehicle GAN Gongchang[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0091

Citation:

Effect of Hub-to-tip Ratio on Performance of High Speed Pump Jet Propulsor for Undersea Vehicle GAN Gongchang[J]. Journal of Unmanned Undersea Systems. doi: 10.11993/j.issn.2096-3920.2024-0091

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Effect of Hub-to-tip Ratio on Performance of High Speed Pump Jet Propulsor for Undersea Vehicle GAN Gongchang

doi: 10.11993/j.issn.2096-3920.2024-0091

The 705 Research Institute, China State Shipbuilding Corporation limited, Xi’an 710077, China

Received Date: 2024-05-27
Accepted Date: 2024-08-27
Rev Recd Date: 2024-08-06

Available Online: 2024-12-17

Abstract

Abstract

In order to investigate the influence of hub-to-tip ratio on the high-speed pump jet propulsor of undersea vehicles, taking the impeller with specific speed of 1 920 as the research object, numerical calculation, performance result analysis and comparion, and experimental verification of three different hub-to-tip ratios of the high-speed pump jet propulsor of undersea vehicles were conducted. Using Fluent software, the Reynolds equation N-S equation and SST k-ω model are used to predict the head, efficiency and thrust of the impeller. The performance curves, cavitation performance data, and internal flow field conditions of impellers with different hub-to-tip ratios were obtained through numerical simulation calculations. The results show that, the pressure gradient on the blade surface from the blade tip to the shroud decreases, with the increase of the hub-to-tip ratio, the maximum static pressure on the blade decreases, the head and efficiency of the pump jet propulsor decrease, and the cavitation performance significantly declines, but it is better than that of the small hub-to-tip ratio in the cavitation state. The research findings can provide certain references for the optimization design of high-speed pump jet propulsor structures for undersea vehicle pump jet propellers.
- undersea vehicle,
- hub-to-tip ratio,
- pump jet propulsor,
- cavitation

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References(20)

References

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