The flutter instability resulting from the interaction of a flexible plate with a fluid flow is experimentally investigated. The present visualizations are obtained with two square plates (i.e. of aspect ratio H/L = 1, see the sketch of the experiment in Fig. 1.) made in a plastic sheet (of flexural rigidity 4.8 10-4 kg m 2 s-2) and of length L = 8 and 21 cm. Experiments are performed in the ho...

Nowadays, atomic-force microscopy plays a significant role in nanoscience and nanotechnology, and is widely used for direct measurement at atomic scale and scanning the sample surfaces. In tapping mode, the microcantilever of atomic-force microscope is excited at resonance frequency. Therefore, it is important to study its resonance. Moreover, atomic-force microscopes can be operated in fluid e...

This paper presents systematic comparisons of experiments against fluid structure interaction (FSI) simulations for flat water plate entry. Special focus is attributed on hydroelasticity and air trapping effects, quantification the experimental numerical uncertainties validity modelling assumptions prediction bottom slamming induced loads. Consequently, American society Mechanical Engineers sta...

the directional response and roll stability characteristics of a partly filled tractor semi-trailer vehicle, with cylindrical tank, are investigated in various maneuvers. the dynamic interaction of liquid cargo with the tractor semi-trailer vehicle is also evaluated by integrating a dynamic slosh model of the partly filled tank with five-degrees-of-freedom of a tractor semi-trailer tank model. ...

The interaction between swimming and flying animals and their fluid environments generates downstream wake structures such as vortices. In most studies, the upstream flow in front of the animal is neglected. In this study, we demonstrate the existence of upstream fluid structures even though the upstream flow is quiescent or possesses a uniform incoming velocity. Using a computational model, th...

In this study we consider the unsteady separated flow of an inviscid fluid (density ρf ) around a falling flat plate (thickness T , half-chord L, width W , and density ρs) of small thickness and high aspect ratio (T L W ). The motion of the plate, which is initially released from rest, is unknown in advance and is determined as part of the solution. The flow solution is assumed two-dimensional ...

Based on our previous work, we propose a homogenized model of acoustic waves propagating through periodically perforated elastic plates with metamaterial properties due to embedded arrays soft inclusions serving for resonators. Such structures enable suppress the transmission selected frequency bands. Homogenization vibro-acoustic fluid-structure interaction problem in 3D complex geometry layer...

Abstract Gearbox housing geometry and oil guide plates strongly influence gearbox flow interaction of with machine elements. Guided can increase efficiency improve heat management. Recent research studies have demonstrated the potential Computational Fluid Dynamics (CFD) simulations to predict no-load losses. Thereby, has rarely been addressed. This study focuses on a CFD analysis dip lubricate...

A closed-form analytical solution procedure is proposed to solve the coupled fluid-structure interaction (FSI) equations that involve first-order Doubly Asymptotic Approximation (DAA1) formulation. An efficient method comprised of nonstandard finite difference (NSFD) scheme applied. First all, are developed analyze response a rigid mass-spring oscillator in an air-backed condition when it subje...

In a severe accident, molten corium may penetrate the reactor pressure vessel and enter cooling water in cavity, then steam explosion occur. Steam explosions can initiate waves threaten structural integrity of cavity. To investigate propagation characteristics waves, including pattern, attenuation, amplification under TNT detonation, coupled numerical approach combined with arbitrary Lagrangian...