ABSTRACT
A bubble generator has been developped that has a constant wall temperature, T, during bubble growth. Bubbles originate from an artificial cavity with a known mouth radius and T is directly measured.
The angle of detachment of bubbles is found to depend on the liquid velocity and on the temperature boundary condition that also affects the growth rate in a manner that has been explained.
In the force balance governing bubble motion in the direction normal to the wall the so-called expansion force and one of the lift forces are probably much less important than the other forces. New fitting coefficients are derived for all forces, although no definitive values have been obtained yet.
