Question: Consider three-dimensional, incompressible, irrotational flow. Use two methods to prove that the viscous term in the Navier-Stokes equation is zero: (a) Using vector notation; and

Consider three-dimensional, incompressible, irrotational flow. Use two methods to prove that the viscous term in the Navier-Stokes equation is zero:
(a) Using vector notation; and
(b) Expanding out the scalar terms using irrotationality.

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a For irrotational flow V 0 and V so the viscous term may be rewritten ... View full answer

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