Confined Shocks inside Isolated Liquid Volumes -- A New Path of Erosion?
Fluid Dynamics
2011-10-19 v2 Solar and Stellar Astrophysics
Space Physics
Abstract
The unique confinement of shock waves inside isolated liquid volumes amplifies the density of shock-liquid interactions. We investigate this universal principle through an interdisciplinary study of shock-induced cavitation inside liquid volumes, isolated in 2 and 3 dimensions. By combining high-speed visualizations of ideal water drops realized in microgravity with smoothed particle simulations we evidence strong shock-induced cavitation at the focus of the confined shocks. We extend this analysis to ground-observations of jets and drops using an analytic model, and argue that cavitation caused by trapped shocks offers a distinct mechanism of erosion in high-speed impacts (>100 m/s).
Keywords
Cite
@article{arxiv.1109.3175,
title = {Confined Shocks inside Isolated Liquid Volumes -- A New Path of Erosion?},
author = {Danail Obreschkow and Nicolas Dorsaz and Philippe Kobel and Aurele de Bosset and Marc Tinguely and John Field and Mohamed Farhat},
journal= {arXiv preprint arXiv:1109.3175},
year = {2011}
}
Comments
4 page letter, 4 figures