摘要: An important step towards the understanding of many industrial coating processes is a solution dragout problem, which to determine thickness film liquid clings plate when it drawn steadily out bath liquid. approximate solution, valid for small capillary numbers, was given by Landau and Levich, considerable effort has been exerted extend or refine this work. In paper we show that Landau-Levich result an asymptotic as number tends zero, fact not properly appreciated hitherto, how correction terms may be obtained method matched expansions. We also results applied horizontal roller.
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