Radiative Decay of Bubble Oscillations in a Compressible Fluid

Modelling bubble clusters in compressible liquids

We present a new model for bubbly cavitating flows. Based on volume-averaged equations, a subgrid model is added to account for a bubble, or multiple bubbles, within each computational cell. The model converges to the solution of ensembleaveraged bubbly flow equations for weak oscillations and monodisperse systems. In the other extreme, it also converges to the theoretical solution for a single...

Collective oscillations in bubble clouds

ZORANA ZERAVCIC†, DETLEF LOHSE AND WIM VAN SAARLOOS Instituut Lorentz, University of Leiden, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands Physics of Fluids Group, Mesa+ and Impact Research Institutes and Burgers Center for Fluid Dynamics, Department for Science and Technology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands FOM Foundation, PO Box 3201, 3502 GA Utrecht, T...

Radiative Energy Transfer in Compressible Turbulence

Radiative energy transfer in compressible turbulence

This Letter investigates the compressible energy transfer process. We extend a methodology developed originally for incompressible turbulence and use databases from numerical simulations of a weak compressible turbulence based on Eddy-DampedQuasi-Normal-Markovian (EDQNM) closure. In order to analyze the compressible mode directly, the well known Helmholtz decomposition is used. While the compre...

Hyperon radiative decay.