Morphing Hydrofoil Model Driven by Compliant Composite Structure and Internal Pressure

In this work, a collaborative experimental study has been conducted to assess the effect an imposed internal pressure has on the controlling the hydrodynamic performance of a compliant composite hydrofoil. It was expected that the internal pressure together with composite structures be suitable to c...

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Bibliographic Details
Published in:Journal of marine science and engineering 2019-12, Vol.7 (12), p.423
Main Authors: Fatiha, Mohammed Arab, Augier, Benoît, Deniset, François, Casari, Pascal, Astolfi, Jacques André
Format: Article
Language:English
Subjects:
Angle of attack
Boundary layers
Cavitation
compliant
composite
Composite materials
Composite structures
Deformation effects
Finite element method
Flow velocity
Fluid-structure interaction
Forces
Hydrodynamics
hydrofoil
Hydrofoils
Internal pressure
Iterative methods
Mathematical models
Morphing
Oil consumption
Optimization
Panel method (fluid dynamics)
Perturbation
Pressure
Pressure effects
Reynolds number
Sciences of the Universe
smart-structure
Stainless steel
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Summary:In this work, a collaborative experimental study has been conducted to assess the effect an imposed internal pressure has on the controlling the hydrodynamic performance of a compliant composite hydrofoil. It was expected that the internal pressure together with composite structures be suitable to control the hydrodynamic forces as well as cavitation inception and development. A new concept of morphing hydrofoil was developed and tested in the cavitation tunnel at the French Naval Academy Research Institute. The experiments were based on the measurements of hydrodynamic forces and hydrofoil deformations under various conditions of internal pressure. The effect on cavitation inception was studied too. In parallel to this experiment, a 2D numerical tool was developed in order to assist the design of the compliant hydrofoil shape. Numerically, the fluid-structure coupling is based on an iterative method under a small perturbation hypothesis. The flow model is based on a panel method and a boundary layer formulation and was coupled with a finite-element method for the structure. It is shown that pressure driven compliant composite structure is suitable to some extent to control the hydrodynamic forces, allowing the operational domain of the compliant hydrofoil to be extended according to the angle of attack and the internal pressure. In addition, the effect on the cavitation inception is pointed out.
ISSN:2077-1312
2077-1312
DOI:10.3390/jmse7120423