# Determining which cases represent 2-D flow with constant density

Which of the following sets of equations represent possible cases of two-dimensional flow with constant density?

a) u=x+y; v=x-y

b) u=x+2y; v=x^2-y^2

c) u=4x+y; v=x-(y^2)

d) u=x*t+2y; v=x^2-y*(t^2)

e) u=x*t^2 ; v=x*y*t+y^2

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#### Solution Summary

This solution provides a quick answer regarding two-dimensional flow with constant density in relation to a set of equations.

$2.19