Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
654909 | International Communications in Heat and Mass Transfer | 2006 | 9 Pages |
Abstract
A cell method is developed, which takes into account the bubble geometry of polyhedral foams, and provides for the generalized Rayleigh–Plesset equation that contains the non-local in time term corresponding to heat relaxation. The Rayleigh–Plesset equation together with the equations of mass and momentum balances for an effective single-phase inviscid fluid yield a model for foam acoustics. The present calculations reconcile observed sound velocity and attenuation with those predicted using the assumption that thermal dissipation is the dominant damping mechanism in a range of foam expansions and sound excitation frequencies.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Yuri M. Shtemler, Isaac R. Shreiber,