Ludwig Prandtl Pointed out that fluid flows with small viscosity, such as water flows and airflows, can be divided into a thin viscous layer (or boundary layer) near solid surfaces and interfaces, patched on to an early in viscis outer layer, where the Euler and Bernoulli equations apply. (jan 1, 1875 – jan 1, 1953)
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Date:
jan 1, 1875
jan 1, 1953
~ 78 years