Open Access
Modeling Laser-Generated Cavitation Bubbles.
Cinnamon M. Christian,Eric G. Paterson,Arnold A. Fontaine +2 more
- 01 Aug 2012
Abstract: Cavitation in turbomachinery can impact performance and lifecycle. The formation and collapse of cavitating bubbles near a surface releases significant energy in a very short time often resulting in erosion damage. Considerable research has focused on understanding the physics of bubble formation and collapse, and how this collapse relates to surface erosion. To date this has been an elusive goal due to the process physics, flow and temporal scales and experimental and computational limitations. This research focused on developing a computational model of cavitation bubble formation and collapse to be used to develop erosion prediction tools. The dynamics associated with the formation of a laser-pulse generated bubble and its collapse against a solid wall was computationally modeled with OpenFOAM using a compressible multi-phase pressure-based solver. A conservation of energy model was developed to predict the localized heating occurring at the focal point of the laser. The temporal bubble dynamics growth, collapse, rebound and associated flow characteristics of high speed re-entrant jet and high pressure waves were modelled as a function of bubble stand-off distance. Results were compared to published research. The model successfully computes bubble formation and collapse dynamics, re-entrant jet structure and magnitude, the associated pressure field, and sensitivity to stand-off distance.
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Citations
•Journal Article
Energy balance of optical breakdown in water at nanosecond to femtosecond time scales
Alfred Vogel,Joachim Noack,Kester Nahen,Dirk Theisen,Stefan Busch,Ulrich Parlitz,Daniel X. Hammer,Gary D. Noojin,Benjamin A. Rockwell,Reginald Birngruber +9 more
TL;DR: In this paper, the authors investigated the partition of laser energy between these channels during breakdown in water, and found that the absorption at the breakdown site first decreases strongly with decreasing pulse duration, but increases again for < 3p s.
341
Numerical modeling of laser generated cavitation bubbles with the finite volume and volume of fluid method, using OpenFOAM
TL;DR: In this paper, a finite volume method using OpenFOAM is used to numerically model laser generated cavitation bubbles with the Tait equation for the liquid (water) and compare the results with the Gilmore model and experiments.
226
An experimental and numerical study on the dynamical behaviors of the rebound cavitation bubble near the solid wall
TL;DR: In this article, a compressible two-phase solver considering phase change and thermodynamic effect simultaneously is developed in OpenFOAM to better understand the dynamical behaviors of the rebound cavitation bubble, the multi-period evolution of the Cavitation bubble near the solid wall is investigated experimentally and numerically.
49
Early Dynamics of a Laser-Induced Underwater Shock Wave
TL;DR: In this paper, the early evolution of the shock wave induced by a nanosecond pulsed laser in still water was observed and investigated using a high-time-resolved shadowgraph system.
36
Thermodynamic effect of single bubble near a rigid wall.
TL;DR: A compressible fluid model is introduced to accurately capture the transient process of bubble shapes and temperature, as well as corresponding pressure, and velocity and shows that a bubble near the rigid boundary presents high-speed jet in collapse stage and counter jet in rebound stage, respectively.
24
References
•Book
Cavitation and Bubble Dynamics
Christopher E. Brennen
- 01 Oct 2013
TL;DR: In this paper, the fundamental physical processes involved in bubble dynamics and the phenomenon of cavitation are described and explained, and a review of the free streamline methods used to treat separated cavity flows with large attached cavities is provided.
•Book
Fundamentals of Cavitation
Jean-Pierre Franc,Jean-Marie Michel +1 more
- 14 Jul 2004
TL;DR: Kato et al. as mentioned in this paper studied the dynamics of cavitation in real liquid flows and proposed a steady potential flow theory to model the cavity flow dynamics of a liquid/vapor mixture with phase change.
Cavitation erosion by single laser-produced bubbles
A. Philipp,Werner Lauterborn +1 more
TL;DR: In this article, the dynamics of a single laser-generated cavitation bubble in water and the resulting surface damage on a flat metal specimen are investigated in detail with high-speed photography with framing rates of up to one million frames/s.
860
Cavitation Bubbles Near Boundaries
John Blake,D. C. Gibson +1 more
TL;DR: In this article, the authors present results from experimentaux experimentaux et theoriques concerning l'effondrement de bulles de cavitation pres de frontieres rigides, de surfaces libres, d'interfaces entre de two fluides de densites differentes et de materiaux composites.
826
Experimental investigations of cavitation-bubble collapse in the neighbourhood of a solid boundary
W. Lauterborn,H. Bolle +1 more
TL;DR: In this paper, the dynamics of the bubbles in the neighbourhood of a solid boundary were studied by means of high-speed photography using a rotating-mirror camera with framing rates of up to 300000 frame/s.
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