Fluid-structure-acoustic coupling for a flat plate

Springer, Matthias; Scheit, Christoph; Becker, Stefan

doi:10.1016/j.ijheatfluidflow.2017.04.013

Cited by 11 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…121,123 In recent work, Springer et al. 124 investigated fluid-structure–acoustic coupling for a flexible flat plate installed behind a step. Results indicated that vibroacoustic sound propagation was based on the temporal displacement of a flexible plate located in the wake region of the step, loaded with turbulent pressure and shear stress forces.…”

Section: Effects On Wing Acousticsmentioning

confidence: 99%

Recent progress in flexibility effects on wing aerodynamics and acoustics

Prapamonthon

Yin

Yang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

Since the theoretical aeroelasticity for flapping-wing aerodynamics was introduced in the 1920s, the effects of flexibility on aeroelasticity have been paid more attention to aerodynamic design. In recent years, the trait of the wing flexibility is applied for small-scale wings of biomimetic flyers including micro air vehicles and mini unmanned aerial vehicles. Until now, the aerodynamic performance and great agility of these flyers, which are beneficially used for military missions and other civilian applications, have been improved through surrogate flapping wings with the favorable effects of the flexibility. As per the aeroelasticity principle for the forward flying, the chordwise flexibility of an elastic flapping wing can generate thrust and lift redistributions, whereas the spanwise flexibility can result in variations of the angle of attack and the shift of phase along the wingspan direction. Consequently, all vortices generated by the flapping wing i.e. (1) leading-edge vortices, (2) tip vortices, and (3) trailing-edge vortices are blended supportively, thereby improving the aerodynamic performance and agility. Hence, the growth of research and development of the aerodynamic performance and agility for these flyers under the influence of flexible wings increases through experimental and computational studies dynamically and rapidly. This review aims to highlight the important role of the flexibility in the recent progress in wing aerodynamics of these flyers through several wing models done by famous groups of experts in this field. In addition, this review includes the acoustics of the wings under the flexibility effects which is considered as a new key for better flyer design and improvement. A comprehensive understanding of the integrated aerodynamics and acoustics under the wing flexibility is, therefore, needed.

show abstract

Section: Effects On Wing Acousticsmentioning

confidence: 99%

Recent progress in flexibility effects on wing aerodynamics and acoustics

Prapamonthon

Yin

Yang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

show abstract

“…Related with this, some interesting studies can be found in the literature. For instance, Springer et al [12] numerically studied a simplified version of the problem: a fluid flow passes over a wall-mounted obstacle which generates a turbulent wake, and the unsteady pressure fluctuations after the wake excite a thin flat plate which starts to vibrate. However, in their work they did not provide experimental data about the plate vibration; they over predicted the reattachment length by more than 50 % and a low number of structural modes were excited which, in principle, disagrees with experiments [13].…”

Section: Introductionmentioning

confidence: 99%

“…They showed how, for the case were the flow becomes turbulent, most of the natural modes of vibration of the plate are excited which, as could be expected, corresponds to a peak in the Sound Pressure Level spectrum for the corresponding natural frequencies. Schafer et al [14] investigated the same simplified geometry as [12], using a very thin flat plate of 40 µm, and assuming two-way fluid structure coupling, obtaining accurate results for the flow field, compared with the experiments. However, the prediction of the induced vibration agreed only qualitatively with the experiments.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Prediction of flow induced vibration of a flat plate located after a bluff wall mounted obstacle

Torregrosa

Gil

Quintero

et al. 2019

Journal of Wind Engineering and Industrial Aerodynamics

View full text Add to dashboard Cite

Accurate prediction of Flow Induced Vibration phenomena is currently a field of major interest due to the use of lightweight materials in the automotive and aerospace industry. This article studies the turbulent flow around a wallmounted obstacle, and the induced deformations produced by the pressure fluctuations on a plate located downstream the obstacle. The methodology used is a combination of experimental tests and numerical simulations. On one side, experiments were carried out in a wind tunnel test facility equipped with Particle Image Velocimetry to characterize the fluid velocity field, and laser vibro-meter to measure the vibrations of the plate. On the other side, Fluid-Structure Interaction (FSI-one-way) has been calculated by considering different turbulence modelling approximations (RANS and LES). Finally, numerical results have been analyzed and validated against the experiments in terms of main flow structures and the vibroacoustic response of the plate.

show abstract

Aeroacoustic simulation of flexible structures in low Mach number turbulent flows

Kolb

Schäfer

2021

Computers & Fluids

View full text Add to dashboard Cite

Fluid-structure-acoustic coupling for a flat plate

Cited by 11 publications

References 8 publications

Recent progress in flexibility effects on wing aerodynamics and acoustics

Recent progress in flexibility effects on wing aerodynamics and acoustics

Prediction of flow induced vibration of a flat plate located after a bluff wall mounted obstacle

Aeroacoustic simulation of flexible structures in low Mach number turbulent flows

Contact Info

Product

Resources

About