Gas diffusion among bubbles and the DCS risk
Abstract
We present some experimental and simulation results that reproduces the Ostwald ripening (gas diffusion among bubbles) for air bubbles in a liquid fluid. Concerning the experiment, there it is measured the time evolution of bubbles mean radius, number of bubbles and radius size distribution. One of the main results shows that, while the number of bubbles decreases in time the bubbles mean radius increases, hence, it follows that the smaller bubbles disappear whereas the -- potentially dangerous for the diver -- larger bubbles grow up. Consequently, this effect suggests a possible contribution of the Ostwald ripening to the decompression sickness, and if so, it should be pursued its implementation to the Reduced Gradient Bubble Model (RGBM) so as to build up dive tables and computer programs for further diving tests.
Keywords
Cite
@article{arxiv.1711.08987,
title = {Gas diffusion among bubbles and the DCS risk},
author = {Oswaldo M. Del Cima and Paulo C. Oliveira and Cesar M. Rocha and Hallan S. Silva and Alvaro V. N. C. Teixeira},
journal= {arXiv preprint arXiv:1711.08987},
year = {2017}
}
Comments
11 pages, 46 figures, published in the Proceedings from the International Conference on Underwater Education ICUE 2017, Long Beach, California, May 6-7