MODEL OF FILM FLOW IN A DEAD-END CONIC CAPILLARY

N. P. Miguna and A. I. Shnipb

UDC 532.6

A physical theory of formation and growth of a liquid 
column in the dead end of a conic capillary submerged in a liquid 
has been constructed. It has been established that the mechanism of 
their phenomenon is based on the film flow (stabilized by disjoining 
pressure) over capillary walls because of the difference of pressures 
in two liquid columns due to capillary forces. The main qualitative 
features of the process following from the theory, namely, the constancy 
of the liquid flow to the vertex with time and the linear dependence 
of the inverse specific flow on the angle of opening of capillaries, 
have been confirmed experimentally.

aInstitute of Applied Physics, National Academy of Sciences of Belarus, 
Minsk, Belarus; bA. V. Luikov Heat and Mass Transfer Institute, National 
Academy of Sciences of Belarus, Minsk, Belarus. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 75, No. 6, pp. 145-150, November-December, 2002. Original article 
submitted April 18, 2002.

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