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Thin Film Pressure Driven Fluid Flow

Thin Film Pressure Driven Fluid Flow

Thin Film Pressure Driven Fluid Flow

(OP)
I have a situation where I would like to estimate the flow in very fine stratch in a plastic sheet (score marks from a injection mold, so barly detectable by eye). Fluid flow is laminar and very very slow. Fluid is water. Do regular fluid mechanics, ie Pouiselle's equation still hold?

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