Experimental Study of Laser-Generated Cavitation Bubble Motion Near a Free Liquid Surface

2012 ◽  
Vol 32 (7) ◽  
pp. 0714003
Author(s):  
刘涛 Liu Tao ◽  
王江安 Wang Jiang′an ◽  
宗思光 Zong Siguang ◽  
梁善永 Liang Shanyong
Keyword(s):  
Experimental Study ◽  
Cavitation Bubble ◽  
Liquid Surface ◽  
Free Liquid Surface ◽  
Bubble Motion

scholarly journals Unsteady deformations of a free liquid surface caused by radiation pressure

2011 ◽  
Vol 682 ◽  
pp. 460-490 ◽  
Author(s):  
B. ISSENMANN ◽  
R. WUNENBURGER ◽  
H. CHRAIBI ◽  
M. GANDIL ◽  
J.-P. DELVILLE
Keyword(s):  
Analytical Model ◽  
Radiation Pressure ◽  
Liquid Surface ◽  
Acoustic Pulse ◽  
Free Liquid Surface ◽  
Time Dependent ◽  
Surface Dynamics ◽  
Fluid Interface ◽  
Numerical Predictions ◽  
Strongly Damped

We present an analytical model of the time-dependent, small-amplitude deformation of a free liquid surface caused by a spatially localized, axisymmetric, pulsed or continuous, acoustic or electromagnetic radiation pressure exerted on the surface. By exactly solving the unsteady Stokes equation, we predict the surface dynamics in all dynamic regimes, namely inertial, intermediate and strongly damped regimes. We demonstrate the validity of this model in all dynamic regimes by comparing its prediction to experiments consisting of optically measuring the time-dependent curvature of the tip of a hump created at a liquid surface by the radiation pressure of an acoustic pulse. Finally, we present a numerical scheme simulating the behaviour of a fluid–fluid interface subjected to a time-dependent radiation pressure and show its accuracy by comparing the numerical predictions with the analytical model in the intermediate and strongly damped regimes.

Structure at the free liquid surface

1981 ◽  
Vol 81 (5) ◽  
pp. 278-280 ◽  
Author(s):  
Thomas R. Osborn ◽  
Clive A. Croxton
Keyword(s):  
Liquid Surface ◽  
Free Liquid Surface

Study on the Predictive Evaluation Method of Load Acting on the Roof and Internal Components of Cylindrical Tanks by Nonlinear Sloshing

2020 ◽  
Author(s):  
Hideyuki Morita ◽  
Tomoshige Takata ◽  
Hideki Madokoro ◽  
Hiromi Sago ◽  
Shinobu Yokoi ◽  
...  
Keyword(s):  
Wave Height ◽  
Seismic Isolation ◽  
Liquid Surface ◽  
Impact Load ◽  
Response Spectrum ◽  
Free Liquid Surface ◽  
Past Study ◽  
Long Period ◽  
Nonlinear Sloshing ◽  
Cylindrical Tanks

Abstract When cylindrical tanks installed in the ground, such as oil tanks and liquid storage tanks, receive strong seismic waves, including the long-period component, motion of the free liquid surface inside the tank called sloshing may occur. If high-amplitude sloshing occurs and the waves collide with the tank roof, it may lead to accidents such as damage of the tank roof or outflow of internal liquid of the Tank. Therefore, it is important to predict the wave height of sloshing generated by earthquake motions. Sloshing is a type of vibration of free liquid surface, and if the sloshing wave height is small, it can be approximated with a linear vibration model. In this case, the velocity-response-spectrum method using velocity potential can estimate the sloshing wave height under earthquake motions. However, if the sloshing wave height increases, the sloshing becomes nonlinear, and necessary to evaluate the wave height using other methods such as numerical analysis. Design earthquake magnitude levels in Japan tend to increase in recent years, long-period components of earthquake wave which act on the sloshing wave height also increase instead of introducing seismic isolation mechanisms. To evaluate load acting on the internal components of cylindrical tanks by nonlinear sloshing, there are few applications which quantitatively evaluated the crest impact load of nonlinear sloshing. In order to evaluate the load acting on the internal components of cylindrical tanks, the range of applicability of the fluid flow analysis method which validated the analysis accuracy of impact load acting on the roof in a simple cylindrical tank in the past study (PVP2019-93442) is extended to cylindrical tanks with internal components.

scholarly journals Experimental study of a laser induced cavitation bubble near a complex boundary

2019 ◽  
Vol 240 ◽  
pp. 062039 ◽  
Author(s):  
Feipeng Chen ◽  
Yuning Zhang ◽  
Yuning Zhang ◽  
Yongxue Zhang
Keyword(s):  
Experimental Study ◽  
Cavitation Bubble ◽  
Complex Boundary
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