Question

Determining whether these equations have smooth solutions is one of the seven Millennium Prize problems. For 10 points each:
[10e] Identify this set of unsolved PDEs that model the behavior of viscous fluids, named after a Frenchman and an Irishman.
ANSWER: Navier-Stokes [nav-ee-AY stokes] equations
[10m] The Navier-Stokes equations can be used with the mass continuity equation to model the flow of a pipe. For an incompressible flow, the mass continuity equation states this operation applied to velocity equals zero.
ANSWER: divergence [or div or del-dot or nabla-dot; reject “del” alone]
[10h] Another way of modeling fluid flow in a pipe involves using this boundary condition, which states that the fluid velocity at the interface is zero for a stationary pipe.
ANSWER: no-slip condition
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Data

Georgia Tech BMTSU0000
MTSUClaremont100010
WUSTLUSN A1010020