Particles, Drops, and Bubbles

TABLE 5-26 Mass-Transfer Correlations for Particles, Drops, and Bubbles in Agitated Systems... 

G. Highly agitated systems solid particles, drops, and bubbles continuous phase coefficient [E] Use arithmetic concentration difference. Use when gravitational forces overcome by agitation. Up to 60% deviation. Correlation prediction is low (Ref. 118). (PA, ar.k) = power dissipated by agitator per unit volume liquid. [79][83]p.231 [91] p. 452... 

A plate is a model for membranes, films and coatings. Cylinders can be models for fibres, but also for pores. We often regard particles, drops and bubbles as if they are little spheres. 

G. Highly agitated systems solid particles, drops, and bubbles continuous phase coefficient... 

One of the main methods for obtaining approximate closed-form solutions of the corresponding hydrodynamic problems is to linearize the Navier-Stokes equations for low Reynolds numbers. This method is often used in this chapter when we study the motion of small particles, drops, and bubbles in a fluid. 

A number of physical and mathematical statements of problems on motion of particles, drops, and bubbles in fluid, as well as various formulas and experimental data, can be found, for example, in [94, 179, 183, 255, 270, 287, 517],... 

Formula (4.4.21) is quite general and holds for solid particles, drops, and bubbles of arbitrary shape in a uniform translational flow at any Re as Pe —F 0. 

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