Dry spot growth criterion for isothermal liquid films on a horizontal substrate
L.I. Maltsev1, Yu.S. Podzharov1, and O.A. Kabov1,2
1Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2Novosibirsk State University, Novosibirsk, Russia
E-mail: Maltzev@itp.nsc.ru
Keywords: liquid film, dry spot, dry spot growth criterion, gravity, capillary effect, contact angle
Pages: 383–387
Abstract
A criterion was
elaborated for the phenomenon of dry spot evolution in isothermal liquid films
on a horizontal substrate. The formulas are presented for gravity force and
surface tension acting upon an element of the rim around the dry spot. The
forces balance gives the evolution of initial dry spot: to expand or to
contract.
DOI: 10.1134/S0869864317030076
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