Pressure difference, often denoted as , is a measure of the change in pressure between two points in a fluid or gas system. It quantifies the variation in pressure from one location to another and is an essential concept in fluid dynamics, thermodynamics, and engineering.
- Critical pressure (pcr) in N/m^2
- Freestream pressure (p∞) in N/m^2
- Pressure difference (Δp) in N/m^2