The equation of continuity is a applicable data to solve many characteristics of the fluid during its motion:

As flow in = flow out, we can find out some characteristics of a liquid under some situations, and then we can apply the continuity equation to measure characteristics of that fluid under other situations.

Q1=Q2

This can be represented as:

A1∗v1=A2∗v2

Now, the continuity equation does measure its application to any incompressible fluid. Therefore the fluid is incompressible; the amt. of fluid that flows in a surface must equal the amt. of fluid that flows out of the surface.

Physical Significance

We can see the result of the equation of continuity in our garden. Water flows through the pipe of our garden, and when it reaches the small end of the pipe or the nozzle, the pace of water increases. With the increase of rate of the fluid, the cross-sectional area decreases and with the decrease in pace of fluid decreases, the cross-sectional area increases. Therefore, This is some significance of the equation of continuity.