Numerical analysis on flow noise and structure-borne noise of fully appended SUBOFF propelled by a pump-jet

Shi, Shuaikang; Huang, Xiuchang; Rao, Zhiqiang; Su, Zhen; Hu, Hua

doi:10.1016/j.enganabound.2022.02.012

Cited by 17 publications

(6 citation statements)

References 23 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%

“…At the same time, the flow noise characteristics of the pump-jet driven full-attachment SUBOFF are also studied and compared with the structural noise.Su [22] used computational fluid dynamics ( CFD ) numerical method to calculate the fluctuating pressure on the pump jet channel and the rotor. Cao [23] compared the pump performance under two different computational domains and performed steadystate simulations.…”

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.

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“…In this paper, we first conducted a VPMM test of the SUBOFF full appendage model in a circulating water tank, collected lifting resistance and trimming moment data under various working conditions [6], and obtained corresponding hydrodynamic coefficients by Fourier expansion, integration, and curve fitting, etc. Subsequently, the numerical simulation of the maneuverability test of pure heaving and pure pitching is accurately realized by the dynamic mesh technology, which matches the model's motion law; the hydrodynamic coefficients of velocity and acceleration are predicted [7].…”

Section: Introductionmentioning

confidence: 99%

The comparative research on the VPMM experiment and numerical simulation of the SUBOFF model

Sun,

Hong,

et al. 2024

J. Phys.: Conf. Ser.

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To ensure optimal maneuvering performance of underwater vehicles, it is essential to obtain highly precise hydrodynamic coefficients for constructing the equations of motion. The principal approach to acquiring these coefficients is through the Planar Motion Mechanism (PMM) test. The subject of this paper is the SUBOFF full appendage model. To obtain hydrodynamic coefficients related to maneuvering motion, a Vertical Planar Motion Mechanism (VPMM) test is conducted in the circulating water tank. In addition, a numerical simulation of the typical pure heaving and pure pitching maneuverability test is performed for the model by programming its motion UDF using Fluent’s dynamic mesh technology. The test results and calculated hydrodynamic coefficients are compared to the data obtained from the Key Laboratory of Underwater Robotics Technology of Harbin Engineering University. The calculation results show high credibility of the test results of the circulating tank VPMM test. The corresponding numerical simulation has a certain practical engineering accuracy, which can break through the limitations of the test and also provides valuable experience and technical reference for the hydrodynamic prediction of other underwater vehicles.

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Numerical analysis on flow noise and structure-borne noise of fully appended SUBOFF propelled by a pump-jet

Cited by 17 publications

References 23 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

The comparative research on the VPMM experiment and numerical simulation of the SUBOFF model

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