Speed is a scalar quantity. That means it only has a value, not a direction. Velocity is the rate of movement in a specific ...

velocity and elevation. How useful is Bernoulli's equation? How restrictive are the assumptions governing its use? Here we give some examples. Consider the steady, flow of a constant density fluid in ...

This equation is called the continuity ... except at points where the velocity magnitude is zero, such as at a stagnation point. There are other ways to make the flow visible. For example, we can ...