Total pressure, often denoted a , is a concept used in fluid dynamics to describe the combination of static pressure and dynamic pressure at a specific point within a flowing fluid. It represents the sum of the pressures associated with both the fluid’s velocity and its thermodynamic properties. Total pressure is an important parameter when analyzing fluid flows, especially when considering compressible flows or flows with significant velocity changes. It helps quantify the energy contained within the fluid due to its motion and internal properties.
- is the total pressure at a specific point, which includes both the static pressure () and the dynamic pressure term.
- is the static pressure at that point, representing the pressure exerted by the fluid at rest.
- is the density of the fluid.
- is the fluid velocity at that point.