Bubble velocity profile and model of surfactant mass transfer to bubble surface

Single bubble velocity profiles for a 0.8 mm diameter bubble in solutions of Triton X-100 are simulated by solving the Navier–Stokes equation combined with the Marangoni effect under pseudo-steady state conditions assuming the stagnant cap model and applying different mass transfer control steps. Th...

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Bibliographic Details
Published in:Chemical engineering science 2001-12, Vol.56 (23), p.6605-6616
Main Authors: Zhang, Yongqin, McLaughlin, J.B, Finch, J.A
Format: Article
Language:English
Subjects:
Adsorption
Bubble velocity
Chemistry
Drops and bubbles
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Gas-liquid interface and liquid-liquid interface
General and physical chemistry
Marangoni effect
Mass transfer
Nonhomogeneous flows
Numerical simulation
Physics
Surface physical chemistry
Surfactant
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Summary:Single bubble velocity profiles for a 0.8 mm diameter bubble in solutions of Triton X-100 are simulated by solving the Navier–Stokes equation combined with the Marangoni effect under pseudo-steady state conditions assuming the stagnant cap model and applying different mass transfer control steps. The fit between the experimental and simulated velocity profiles indicated that the mass transfer mechanism for Triton X-100 from bulk solution to the surface of a rising bubble is boundary layer mass transfer controlled.
ISSN:0009-2509
1873-4405
DOI:10.1016/S0009-2509(01)00304-9