Which of the following expression represents the continuity equation in case of steady incompressible flow?

\(\frac{{\partial u}}{{\partial x}} + \frac{{\partial \rho }}{{\partial y}} + \frac{{\partial \rho }}{{\partial z}} = 0\)

\(\frac{{\partial u}}{{\partial x}} + \frac{{\partial v}}{{\partial y}} + \frac{{\partial w}}{{\partial z}} = 0\)

\(\frac{{\partial u}}{{\partial x}} - \frac{{\partial v}}{{\partial y}} - \frac{{\partial w}}{{\partial z}} = 0\)

Which of the following expression represents the continuity equation i

1.	Which of the following expression represents the continuity equation in case of steady incompressible flow?
A.	\(\frac{{\partial u}}{{\partial x}} + \frac{{\partial v}}{{\partial y}} + \frac{{\partial w}}{{\partial z}} = 0\)
B.	\(\frac{{\partial u}}{{\partial x}} + \frac{{\partial \rho }}{{\partial y}} + \frac{{\partial \rho }}{{\partial z}} = 0\)
C.	\(\frac{{\partial u}}{{\partial x}} - \frac{{\partial v}}{{\partial y}} - \frac{{\partial w}}{{\partial z}} = 0\)
D.	None of these
Answer» B. \(\frac{{\partial u}}{{\partial x}} + \frac{{\partial \rho }}{{\partial y}} + \frac{{\partial \rho }}{{\partial z}} = 0\)