General Formulas for Capillary Force and Drift Velocity

General Formulas for Capillary Force and Drift Velocity 

By equating the sum of the drag force Fv in (5.10.8) and the capillary force (5.10.11) with zero, one can find the velocity of the capillary drift of the drop (in the Stokes approximation)  

These results, are rather general. They cover all cases in which the capillary stresses on the drop surface are stationary and do not depend on the motion of the fluid. Formulas (5.10.8) and (5.10.9), which were derived for Pe = 0, can be obtained from (5.10.11) and (5.10.12) for specific functions a. 

One can find more details on some achievements in this direction in the papers [85, 102, 145, 252, 391, 392, 467, 506]. 

Mass and Heat Transfer Under Complicating Factors 

---