If the pressure differential is increased, what happens to the flow?

When the pressure differential is increased, the flow rate of a fluid typically increases. This relationship is governed by principles outlined in fluid dynamics, specifically described by the equation of continuity and Bernoulli's principle.

In essence, the pressure differential acts as the driving force that moves fluid through a vessel or a given area. According to Poiseuille's law, if all other factors remain constant (such as vessel diameter, fluid viscosity, and temperature), an increase in the pressure difference between two points in a system results in a proportional increase in the flow rate.

This relationship is critical in ultrasound and Doppler studies, where flow dynamics are measured to assess blood flow or fluid movement in various tissues. Understanding this principle is essential for diagnostic purposes, as it helps sonographers interpret flow characteristics in different clinical scenarios.