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A pin of small radius R was immersed vertically in a liquid and taken out at time t=0 . The liquid Coating on the pin
A pin of small radius R was immersed vertically in a liquid and taken out at time t=0 . The liquid Coating on the pin has thickness (Z,T). In the first approximation , assume that = constant . Obtain the equation of motion for Vz(r) and integrate to find the flow rate Q (cm*3/sec) for the film drawing under gravity . When the algebra gets very lengthy , you may drop subsequent steps . Calculate Vz fully , show it how to Q. Do shall balance as shown
( Q / Z ) = Z ( R + ) ( t ). pls solve the sum througly and explain
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