Scaling laws in steady-state aqueous foams including Ostwald ripening

This paper presents scaling laws governing the steady-state behavior of pneumatic foams produced by injecting gas in aqueous surfactant solutions under isothermal conditions. Dimensional analysis of the governing equation for the time rate of change of bubble radius in foams due to Ostwald ripening yielded a dimensionless similarity parameter representing the ratio of the average contact time between bubbles to the characteristic time for gas...