The present work is an experimental and analytical investigation of unsteady bubble motions induced by shock waves. Bubble trajectories were monitored in a shock tube using high-speed Schlieren photographs. Pressure histories at two locations weere used to determine the average wave speed in the ...
Numerical investigation of shock-induced bubble collapse dynamics and fluid–solid interactions during shock-wave lithotripsy LithotripsyBubble dynamicsFluid–structure interactionTissue injuryIn this paper we investigate the bubble collapse dynamics under shock-induced loading near soft ... E Koukas,A Papou...
Shock-induced bubble collapse near solid walls performed using a phase field approach. • The thermodynamically consistent model accounts for capillarity and phase change. • Bubble rebound and shock wave emission described. • Jetting phase observed for sufficiently large triggering shock intensity....
To identify the mechanisms by which shock-induced collapse could lead to the onset of injury, we study an idealized problem involving a preexisting bubble in a deformable vessel. We utilize a high-order accurate, shock- and interface-capturing, finite-volume scheme and simulate the three-...
Besides, the simulation of SW-induced cavitation bubbles dissolution behaviors detected by the B-mode imaging system during in vivo SW treatments, including extracorporeal shock wave lithotripsy (ESWL) and extracorporeal shock wave therapy (ESWT), were carried out based on calculating the integrated ...
LAMINAR-TO-TURBULENT TRANSITION IN A SHOCK-INDUCED SEPARATION BUBBLE Numerical simulations of the compressible Navier-Stokes equations are used to study laminar-to-turbulent transition in a separation bubble created by impin... L Krishnan,N Sandham,J Steelant - 《Proceeding of Fifth International Sy...
The bubble radius was modeled according to the Gilmore–Akulichev equation [120]. When studying shock wave-induced effects on tissue and cells, it is important to report parameters such as the positive pulse duration (positive pulse width), defined as the time from the instant when the ...
As it is mainly based on the pressure signal properties inside the region of the shock oscillation, it may be expected that it will still be relevant for different configurations of shock-induced separation as compression ramp, blunt bodies, or over expanded nozzles....
摘要: The shock wave emitted by the collapse of a laser-induced bubble is detected at propagation distances of 30, 40 and 50 mm, using a PVdF关键词:Bubble Collapse Shock wave Deconvolution DOI: 10.1016/j.ultras.2016.09.007 被引量: 4 ...
Gene transfer therefore can be induced in vivo, particularly using enhanced cavitation. Composite reflectors (see Section 12.3.1) may be useful to control shock wave bubble interaction in order to obtain an optimal gene transfer or drug delivery to the target cells with minimal damage to ...