For what combination of constants, a, b, c, and e can the velocity components u = ax + by, v = cx + ey, and w = 0 be used to describe an incompressible flow field? (5 points)

Engineering by Geoffrey

1. Determine an expression for the vorticity of the flow field described by the velocity vector V = —xy31 + y43. Is this flow irrotational? (5 points)
2. For what combination of constants, a, b, c, and e can the velocity components u = ax + by, v = cx + ey, and w = 0 be used to describe an incompressible flow field? (5 points)