Mikhail M. Agrest, Ph.D.
Department of Physics and Astronomy
College of Charleston
Pulsating flow of a gas into a liquid through a capillary at critical pressure
Abstract
Understanding and the describing of the capillary effects have pure academic interest and practical applications in a variety of fields including, but not limited to membrane technology, bioengineering, environmental control, etc.
A pulsating behavior of the gas flow through a capillary into a liquid was discovered [1] to occur at critical pressure:
Now we have derived dimensionless differential equation with the boundary conditions
to model the gas bubble origination, growth and finally launch from the mouth of the capillary. It leads to the expression of the gas flow through the capillary into the bubble.
The future study of the motion of the meniscus within the capillary and experimental study of the process to assess the offered theory is proposed.
1. M.M.Agrest, L.S.Reifman and V.D.Sobolev. The mechanism of the gas flow trough a capillary immersed into liquid. Colloid Journal USSR, USA, 1984, v.46 #3, pp. 486-487.