Broadband force spectra of a pump-jet propulsor subjected to inflow turbulence: Comparison with ducted propeller and propeller

Shi, Shuaikang; Tang, Wanghao; Huang, Xiuchang; Hu, Hua

doi:10.1016/j.oceaneng.2022.111087

Cited by 12 publications

(2 citation statements)

References 24 publications

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“…Zhang [18,19] studied the influence of blade number on the propulsion performance and excitation force of pump-jet propulsor by computational fluid dynamics method, and theoretically and numerically studied the excitation force generation mechanism of pump-jet propulsor ( PJP ) with uniform spacing and non-uniform spacing rotor blades ( ESB and UESB ) after standard submarine model. Some scholars have studied the parameter optimization method of water-jet propeller : Shi [20][21][22] compared the unsteady force spectrum and velocity spectrum characteristics of pump-jet with the characteristics of single rotor and ducted propeller to reveal the influence of duct and pre-swirl stator ; the flow-induced vibration and acoustic radiation characteristics of pump jet in water tunnel are studied.…”

Section: Research Status Of Hydraulic Performance Optimization Of Wat...mentioning

confidence: 99%

Research on Hydraulic Optimization Design Method of Water-Jet Propulsion Pump Considering Hump Index

Long,

Zheng,

Han

et al. 2024

Preprint

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In order to improve the efficiency of water-jet pump and reduce or eliminate the hump phenomenon, it is necessary to optimize the impeller design. In this paper, the optimization of water-jet propulsion pump is studied by combining numerical simulation and experiment.The orthogonal optimization design scheme is established. Based on the numerical simulation method, the hydraulic performance indexes such as energy coefficient, torque coefficient and efficiency of the design points of different design schemes are obtained. The final optimization design is completed by further optimizing the profile and spatial position of the optimal efficiency factor level combination A2B1C1D1 at different spanwise heights.Then, based on the results of numerical simulation by CFX, using Python and LabVIEW programming software, a pump flow head curve fitting and hump judgment program is developed, which can realize the function of curve fitting of flow head, giving the position of trough and peak, and calculating the value of hump climbing coefficient Chump. The influence of different blade structure parameters on the hydraulic performance and energy characteristic curve hump of the water-jet pump is analyzed, and the optimization design of the high-performance water-jet pump considering the hump index is completed. In summary, This method is not only applicable to the hydraulic optimization of the water-jet propulsion pump, but also the research results can provide theoretical basis and technical support for the high-performance and low-vibration design of the water jet propulsion pump.

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Section: Research Status Of Hydraulic Performance Optimization Of Wat...mentioning

confidence: 99%

Research on Hydraulic Optimization Design Method of Water-Jet Propulsion Pump Considering Hump Index

Long,

Zheng,

Han

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Section: Research Status Of Hydraulic Performance Optimization Of Wat...mentioning

confidence: 99%

Research on hydraulic optimization design method of water-jet propulsion pump considering hump index

Long,

Zheng,

Han

et al. 2024

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

：In order to improve the efficiency of water-jet pump and reduce or eliminate the hump phenomenon, it is necessary to optimize the impeller design. In this paper, the optimization of waterjet propulsion pump is studied by combining numerical simulation and experiment.The orthogonal optimization design scheme is established. Based on the numerical simulation method, the hydraulic performance indexes such as energy coefficient, torque coefficient and efficiency of the design points of different design schemes are obtained. The final optimization design is completed by further optimizing the profile and spatial position of the optimal efficiency factor level combination A2B1C1D1 at different spanwise heights.Then, based on the results of numerical simulation by CFX, using Python and LabVIEW programming software, a pump flow head curve fitting and hump judgment program is developed, which can realize the function of curve fitting of flow head, giving the position of trough and peak, and calculating the value of hump climbing coefficient Chump. The influence of different blade structure parameters on the hydraulic performance and energy characteristic curve hump of the water-jet pump is analyzed, and the optimization design of the high-performance water-jet pump considering the hump index is completed.In summary, This method is not only applicable to the hydraulic optimization of the water-jet propulsion pump, but also the research results can provide theoretical basis and technical support for the high-performance and low-vibration design of the water jet propulsion pump.

show abstract

Numerical simulation of the flow field and radiation noise from a pump-jet propulsor under various stator pre-whirl angles

Huang

Sun

et al. 2023

Applied Ocean Research

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Broadband force spectra of a pump-jet propulsor subjected to inflow turbulence: Comparison with ducted propeller and propeller

Cited by 12 publications

References 24 publications

Research on Hydraulic Optimization Design Method of Water-Jet Propulsion Pump Considering Hump Index

Research on Hydraulic Optimization Design Method of Water-Jet Propulsion Pump Considering Hump Index

Research on hydraulic optimization design method of water-jet propulsion pump considering hump index

Numerical simulation of the flow field and radiation noise from a pump-jet propulsor under various stator pre-whirl angles

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