Which of the following relations must hold for an irrotational two-dimensional flow in the \[x-y\] plane:

\[\frac{\partial v}{\partial y}-\frac{\partial u}{\partial x}=0\]

\[\frac{\partial u}{\partial z}-\frac{\partial v}{\partial x}=0\]

\[\frac{\partial v}{\partial x}-\frac{\partial u}{\partial y}=0\]

Which of the following relations must hold for an irrotational two-dim

1.	Which of the following relations must hold for an irrotational two-dimensional flow in the \[x-y\] plane:
A.	\[\frac{\partial v}{\partial y}-\frac{\partial u}{\partial x}=0\]
B.	\[\frac{\partial u}{\partial z}-\frac{\partial v}{\partial x}=0\]
C.	3.2 W
D.	\[\frac{\partial v}{\partial x}-\frac{\partial u}{\partial y}=0\]
Answer» E.

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Which of the following relations must hold for an irrotational two-dimensional flow in the \[x-y\] plane:

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