%0 Journal Article %1 citeulike:4509250 %A Teletzke, Gary F. %A Davis, Ted H. %A Scriven, L. E. %D 1988 %J Revue de Physique Appliquée %K wetting 76d45-capillarity-in-viscous-fluids 76t10-liquid-gas-two-phase-flows-bubbly-flows moving-contact-line %P 989--1007 %R 10.1051/rphysap:01988002306098900 %T Wetting hydrodynamics %U http://rphysap.journaldephysique.org/index.php?option=article&\#38;access=doi&\#38;doi=10.1051/rphysap:01988002306098900 %V 23 %X Bretherton's (1961) theory of the forced, steady displacement of one fluid by another in a tube or between parallel plates is generalized to account for the effects of intermolecular forces in submicroscopically thin films and of a finite driving-fluid viscosity. The theory predicts that there are two displacement regimes, depending on capillary number μU/γ. At low speed the dynamic apparent contact angle retains its static value. If the displaced fluid perfectly wets the solid an equilibrium thin-film remains ; if not, there is not a continuous thin-film. At high speed a hydrodynamically entrained film is left behind regardless of equilibrium wetting characteristics. The entrained film thickens slightly with increasing driving-fluid viscosity. These predictions accord with experiment. In addition, evidence is presented that observed discrepancies between Bretherton's theory and measured film thicknesses are caused by the presence of surface-active impurities. Finally, implications for the submicroscopic origins of seeming slip at apparent contact lines, air entrainment in coating flows, soap-film dynamics, and the generation of mixed-wettability states in porous media are discussed.DOI: 10.1051/rphysap:01988002306098900

@article{citeulike:4509250, abstract = {{Bretherton's (1961) theory of the forced, steady displacement of one fluid by another in a tube or between parallel plates is generalized to account for the effects of intermolecular forces in submicroscopically thin films and of a finite driving-fluid viscosity. The theory predicts that there are two displacement regimes, depending on capillary number μU/γ. At low speed the dynamic apparent contact angle retains its static value. If the displaced fluid perfectly wets the solid an equilibrium thin-film remains ; if not, there is not a continuous thin-film. At high speed a hydrodynamically entrained film is left behind regardless of equilibrium wetting characteristics. The entrained film thickens slightly with increasing driving-fluid viscosity. These predictions accord with experiment. In addition, evidence is presented that observed discrepancies between Bretherton's theory and measured film thicknesses are caused by the presence of surface-active impurities. Finally, implications for the submicroscopic origins of seeming slip at apparent contact lines, air entrainment in coating flows, soap-film dynamics, and the generation of mixed-wettability states in porous media are discussed.DOI: 10.1051/rphysap:01988002306098900}}, added-at = {2017-06-29T07:13:07.000+0200}, author = {Teletzke, Gary F. and Davis, Ted H. and Scriven, L. E.}, biburl = {https://www.bibsonomy.org/bibtex/2f179b2c076502b1b675cd7488a1561f1/gdmcbain}, citeulike-article-id = {4509250}, citeulike-attachment-1 = {teletzke_88_wetting_33640.pdf; /pdf/user/gdmcbain/article/4509250/33640/teletzke_88_wetting_33640.pdf; 1499c30e1b8fd9abac7408d26eadfecebb71612f}, citeulike-linkout-0 = {http://dx.doi.org/10.1051/rphysap:01988002306098900}, citeulike-linkout-1 = {http://rphysap.journaldephysique.org/index.php?option=article\&\#38;access=doi\&\#38;doi=10.1051/rphysap:01988002306098900}, comment = {(private-note)circulated by SGM from hal.archives-ouvertes.fr}, doi = {10.1051/rphysap:01988002306098900}, file = {teletzke_88_wetting_33640.pdf}, interhash = {7f385bf6e84e7aabb4e57fbf6a7da2af}, intrahash = {f179b2c076502b1b675cd7488a1561f1}, journal = {Revue de Physique Appliqu\'{e}e}, keywords = {wetting 76d45-capillarity-in-viscous-fluids 76t10-liquid-gas-two-phase-flows-bubbly-flows moving-contact-line}, pages = {989--1007}, posted-at = {2009-05-13 06:01:29}, priority = {2}, timestamp = {2021-06-28T03:35:37.000+0200}, title = {{Wetting hydrodynamics}}, url = {http://rphysap.journaldephysique.org/index.php?option=article\&\#38;access=doi\&\#38;doi=10.1051/rphysap:01988002306098900}, volume = 23, year = 1988 }