Shear-layer instabilities: particle image velocimetry measurements and implications for acoustics

SC Morris - Annual Review of Fluid Mechanics, 2011 - annualreviews.org
The use of particle image velocimetry (PIV) to study the spatial and temporal features of
unsteady fluid flow has increased dramatically in the past five to ten years. One particular …

[PDF][PDF] Cavity noise

X Gloerfelt - VKI lecture series, 2009 - researchgate.net
The noise radiated by a flow past a cavity has been widely studied during the last fifty years
because of its practical interest and because of the variety of theoretical questions that it …

Characteristics of oscillation in cavity of Helmholtz nozzle generating self-excited pulsed waterjet

M Yuan, D Li, Y Kang, H Shi, H Pan - Chinese Journal of Mechanical …, 2022 - Springer
Cavity flow oscillations in the axisymmetric cavity are critical to the operating efficiency of self-
excited pulsed waterjets, which are widely employed in many practical applications. In this …

Non-equilibrium ordering of liquid crystalline (LC) films driven by external gradients in surfactant concentration

S Maiti, S Roh, I Cohen, NL Abbott - Journal of Colloid and Interface …, 2023 - Elsevier
Hypothesis Gradients in the concentration of amphiphiles play an important role in many
non-equilibrium processes involving complex fluids. Here we explore if non-equilibrium …

[HTML][HTML] Resonant mode characterisation of a cylindrical Helmholtz cavity excited by a shear layer

GJ Bennett, DB Stephens… - The Journal of the …, 2017 - pubs.aip.org
This paper investigates the interaction between the shear-layer over a circular cavity with a
relatively small opening and the flow-excited acoustic response of the volume within to …

Large-scale structures of turbulent flows over an open cavity

W Kang, HJ Sung - Journal of fluids and structures, 2009 - Elsevier
Low Mach number turbulent flows over an open cavity were studied to investigate the
quantitative characteristics of large-scale vortical structures responsible for self-sustained …

Azimuthal behaviour of flow-excited diametral modes of internal shallow cavities

K Aly, S Ziada - Journal of sound and vibration, 2011 - Elsevier
The aerodynamic excitation of ducted cavity diametral modes gives rise to complex flow–
sound interaction mechanisms, in which the axisymmetric free shear layer interacts with the …

Unstructured Large Eddy Simulation of the passive control of the flow in a weapon bay

V Levasseur, P Sagaut, M Mallet, F Chalot - Journal of fluids and structures, 2008 - Elsevier
The control of cavity flows has been investigated by the means of Large Eddy Simulations.
The computations have been carried out on unstructured meshes to assess the efficiency of …

[PDF][PDF] 底部导流板形式对高速列车气动阻力的影响

陈羽, 高喆, 王毅刚, 杨志刚 - 计算机辅助工程, 2016 - containerizations.com
为减小高速列车运行时的气动阻力, 设计直式, 斜式, 内圆弧式和外圆弧式等4
种转向架前后底部导流板的高速列车模型. 通过风洞试验验证数值模拟方法的有效性 …

Optical measurements of the linear sound-flow interaction above a corrugated plate

ME d'Elia, T Humbert, Y Auregan… - 25th AIAA/CEAS …, 2019 - arc.aiaa.org
C are a widely used technological solution to the requirement of strong and flexible pipes in
industrial applications (eg gas extraction). In these, self-induced oscillations which could …