Experimental Investigation of Hydrodynamic Characteristics of Overland Flow with Geocell

The present paper is concerned with the numerical and experimental investigation of the hydroelastic behavior of a deformable hydrofoil in a uniform flow. The study is developed within the general framework of marine structure design and sizing. An experimental setup is developed in the IRENav hydrodynamic tunnel in which a cambered rectangular hydrofoil is mounted. An image-processing device enables the visualization of the foil displacement. As for the numerical part, the structure problem is solved with the finite element method, while the fluid problem is solved with the finite volume method using two distinct numerical codes that are coupled through an iterative algorithm based on the exchange of the boundary conditions at the fluid-structure interface. Results obtained from the coupled fluid-structure computations including deformation and hydrodynamic coefficients are presented. The influence of the fluid-structure coupling is evaluated through comparisons with "noncoupled" simulations. The numerical simulations are in very good agreement with the experimental results and highlight the importance of the fluid-structure coupling consideration. Particular attention is paid to the pressure distribution modification on the hydrofoil as a result of deformations that can lead to an advance of the cavitation inception, which is of paramount importance for naval applications.

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Experimental Investigation on Hydrodynamic Characteristics of Supercavitating Vehicles

Proceedings of the 8th International Symposium on Cavitation ◽

10.3850/978-981-07-2826-7_087 ◽

2012 ◽

Cited By ~ 2

Author(s):

Xulong Yuan ◽

Yadong Wang ◽

Zhu Zhu

Keyword(s):

Experimental Investigation ◽

Hydrodynamic Characteristics ◽

Supercavitating Vehicles

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Slip in Couette flow with pressure gradient: Theoretical and experimental investigation of hydrodynamic characteristics considering slip effect

Journal of Hydrodynamics ◽

10.1007/s42241-020-0007-3 ◽

2020 ◽

Vol 32 (1) ◽

pp. 107-115

Author(s):

Xin Zhao ◽

Chao Wei ◽

Shi-hua Yuan

Keyword(s):

Experimental Investigation ◽

Pressure Gradient ◽

Couette Flow ◽

Hydrodynamic Characteristics ◽

Slip Effect

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Hydrodynamic Characteristics of Wings in Circular Motion

Journal of Ship Research ◽

10.5957/jsr.2002.46.2.92 ◽

2002 ◽

Vol 46 (02) ◽

pp. 92-98

Author(s):

Zelik Segal

Keyword(s):

Experimental Investigation ◽

Circular Motion ◽

Hydrodynamic Characteristics ◽

Large Curvature ◽

Small Curvature ◽

Wide Range ◽

Correct Determination ◽

Order Of Magnitude ◽

Wing Chord

Hydrodynamic characteristics of wings in circular motion are determined at present very approximately, as a rule, according to the solution of the problem on streamlining the wing by a small curvature nonviscid potential. However, in some practical cases the radius of the wing trajectory is of the same order of magnitude as the wing chord. That is why there is a necessity for a more correct determination of wing hydrodynamic characteristics, accounting for the relatively large curvature of the wing trajectory and the and viscosity. This paper presents a description and results of our theoretical and experimental investigation of the hydrodynamic characteristics of wings in a wide range of relative radiuses of their motion.

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