A numerical method for predicting the hydroelastic response of marine propellers

Li, Jiasheng; Rao, Zhiqiang; Su, Jinpeng; Qu, Yegao; Hu, Hua

doi:10.1016/j.apor.2018.02.012

Cited by 22 publications

(11 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The current BEM and FEM models have undertaken extensive numerical convergence and experimental validation experiments, which are described in Li et al [21][22][23]27 To further verify the present BEM codes, several examples are used. The steady pressure distributions of a three-blade propeller, namely the propeller 4119, are employed to assess the accuracy of the current approach for estimating the propellers' open-water performance.…”

Section: Resultsmentioning

confidence: 99%

“…defined in equation ( 10), the reader is referred to the authors' previous works. 22,27 In order to obtain equation (10), the expression 9)) should be expanded in a vector form as:…”

Section: Boundary Element Methodsmentioning

confidence: 99%

“…The reader may refer to Li et al 22,27 for more details about the expressions and derivations of the coefficient matrix U x l and the vector ∂u k v ∂x l È É . When the vibration-induced perturbation velocity ru k v is small, higher-order terms in the nonlinear Bernoulli formula can be neglected.…”

Section: Boundary Element Methodsmentioning

confidence: 99%

“… F r was solved using a three-dimensional panel approach in the time domain. For convenience, the reader may refer to Li et al 27 to see the detailed derivation. In what follows, the detailed formulation of F v is presented.…”

Section: Mathematical Modelmentioning

confidence: 99%

See 3 more Smart Citations

Dynamic responses of elastic marine propellers in non-uniform flows

Chen

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part M:

Self Cite

View full text Add to dashboard Cite

This paper focuses on the development of a three-dimensional panel method in time and frequency domains combined with the finite element method for analyzing the hydroelastic responses of rotating marine propellers in the wake of ships. A fully non-penetration boundary condition imposed on the deformed blade surface is conducted, in which the corrections of both the incoming flow velocities and the normal vectors imposed on the deformed and undeformed blade surface are taken into account. The added-mass and -damping matrices due to strongly coupled fluid-structure interaction are considered. Results of the present method are compared with experimental data available in the literature. It is observed that the fully non-penetration boundary condition applied on the deformed blade surface should be imposed to predict the unsteady performance of elastic propellers, which is due to the change of the added damping predicted by considering different non-penetration boundary conditions.

show abstract

Section: Resultsmentioning

confidence: 99%

“…defined in equation ( 10), the reader is referred to the authors' previous works. 22,27 In order to obtain equation (10), the expression 9)) should be expanded in a vector form as:…”

Section: Boundary Element Methodsmentioning

confidence: 99%

Section: Boundary Element Methodsmentioning

confidence: 99%

Section: Mathematical Modelmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic responses of elastic marine propellers in non-uniform flows

Chen

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part M:

Self Cite

View full text Add to dashboard Cite

show abstract

“…Among the viscous flow methods, URANS (Unsteady-Reynolds-Averaged-Navier-Stokes) methods are the most commonly used, as the prohibitive computation times of LES (Large-Eddy-Simulation), DES (Detached-Eddy-Simulation) and DNS (Direct Numerical Simulation) methods make them suitable only for low Reynolds numbers. Moreover, even though URANS methods yields better hydrodynamic performance prediction and more accurate modelling of the turbulent flow surrounding a marine propeller, the computational efficiency of panel methods makes them highly competitive, and they are thus still widely in use, with new improvements (Li et al, 2018(Li et al, , 2017. Concerning the structure numerical methods employed for the study of FSI on marine composite structures, Finite Element (FE) modelling involving both conventional solid elements for modelling of the homogenized structure, and conventional (thin) shell elements and continuum (thick) shell elements for a ply-by-ply modelling have been used.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation of the fluid-structure interaction on a flexible composite hydrofoil under viscous flows

et al. 2019

View full text Add to dashboard Cite

This research investigates the fluid-structure interaction and hydroelastic response of a composite hydrofoil using an innovative joint experimental and numerical method. The main novelties are, first, the use of a state-of-the-art strain measurement technique, via a fully-distributed-optical fiber sensor directly embedded within the composite plies. This method allows for a finer representation of the structural deformations under hydrodynamic loading. Second, a tightly-coupled high-fidelity fluid-structure interaction numerical model taking into account the turbulent effects in the flow and the ply-by-ply modelling of the composite, is compared to the experimental results. A composite profile is specifically designed as a trapezoidal hydrofoil and is tested for moderate Reynolds number and pre-stall and post-stall incidences. High-speed imaging of the hydrofoil tip and vibrometer measurements are carried out to determine the experimental tip displacements and hydrofoil's vibrations. The numerical and experimental results show a very strong hydroeleastic response, with a structural resonance even for low Reynolds numbers due to the high flexibility of the structure. Strong coupling of the fluid and the structure, with lock-in of the von Kármán vortex-shedding to the structure for small incidences, and an excitation of the structure by leadingedge vortex-shedding for higher incidences, are also observed.

show abstract

Parametric analysis on hydroelastic behaviors of hydrofoils and propellers using a strongly coupled finite element/panel method

Zhang

et al. 2019

J Mar Sci Technol

View full text Add to dashboard Cite

A numerical method for predicting the hydroelastic response of marine propellers

Cited by 22 publications

References 14 publications

Dynamic responses of elastic marine propellers in non-uniform flows

Dynamic responses of elastic marine propellers in non-uniform flows

Experimental and numerical investigation of the fluid-structure interaction on a flexible composite hydrofoil under viscous flows

Parametric analysis on hydroelastic behaviors of hydrofoils and propellers using a strongly coupled finite element/panel method

Contact Info

Product

Resources

About