نتایج جستجو برای: cavitation collapse
تعداد نتایج: 43860 فیلتر نتایج به سال:
The dynamics of cavitation bubbles and their interaction with solids has been studied for long, mostly on the macro-scale sheet vortex cavitation. Erosion takes place small, concentrated areas solid walls exposed to One-way fluid structure (FSI), in which feedback material deformation is not considered, provides an adequate understanding underlying mechanism. However, practical applications mot...
The interaction of lithotripter-generated shock waves with adherent cells is investigated using high-speed optical techniques. We show that shock waves permeabilize adherent cells in vitro through the action of cavitation bubbles. The bubbles are formed in the trailing tensile pulse of a lithotripter-generated shock wave where the pressure drops below the vapor pressure. Upon collapse of cavita...
There are various bubble cavitation phenomena in daily production and life, near-wall is the most common one. This paper studies dynamics between a rigid wall an elastic wall, by changing distance two walls initial position of bubble, several different collapse patterns obtained. Then, we discuss changes migration distance, gravity, maximum radius during cavitation. Finally, numerical simulatio...
We demonstrate a novel strategy for mixing solutions and initiating chemical reactions in microfluidic systems. This method utilizes highly focused nanosecond laser pulses from a Q-switched Nd:YAG laser at lambda = 532 nm to generate cavitation bubbles within 100- and 200-microm-wide microfluidic channels containing the parallel laminar flow of two fluids. The bubble expansion and subsequent co...
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