If the density distribution for the flow given in Problem 10.44 is ρ = Br, where B is a constant, is this an incompressible fluid or an incompressible flow? Problem 10.44 The velocity field for flow...

If the density distribution for the flow given in Problem 10.44 is ρ = Br, where B is a constant, is this an incompressible fluid or an incompressible flow?

Problem 10.44

The velocity field for flow over a cylinder is given by

where A is a constant and U is the oncoming velocity. Determine the velocity gradient at r = (A/U)^0.5.