Dynamics of bubble rising in the presence of surfactants. (English. Russian original) Zbl 1342.76002
Fluid Dyn. 51, No. 2, 266-274 (2016); translation from Izv. Ross. Akad. Nauk, Mekh. Zhidk. Gaza 2016, No. 2, 142-151 (2016).
Summary: The results of experimental studies and theoretical analysis of the dynamics of a spherical bubble rising in a liquid with surfactants are presented for a wide range of Reynolds numbers. A refined empirical dependence for the bubble drag coefficient in the steady-state regime at Re < 1 is obtained. The influence of surfactants on the bubble shape and rising velocity in the transient regime is analyzed.
MSC:
| 76-05 | Experimental work for problems pertaining to fluid mechanics |
| 76T10 | Liquid-gas two-phase flows, bubbly flows |
References:
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