August 2023

Total temperature is a measure of the total energy of a fluid, including both the internal energy and the kinetic energy due to velocity. It takes into account both the temperature due to molecular motion and the temperature rise associated with the kinetic energy of the fluid particles.  NOTE: The total temperature is constant across […]

Length of the wedge (l) refers to the physical dimension that measures the size of a wedge-shaped object. In geometry and engineering, a wedge is a three-dimensional shape that resembles a triangular prism with one of its ends narrower than the other. The length of the wedge typically refers to the dimension along the longest

Temperature ahead of the shock (T1​) refers to the temperature of a fluid at a specific location located upstream (before) of a shock wave in a compressible fluid flow. This temperature is the actual molecular temperature of the fluid at rest, measured before the fluid encounters the shock. Temperature behind the shock (T2) in K

Static temperature at point two (T2​) refers to the actual temperature of a fluid at a specific location designated as “point two” in a fluid flow field. Static temperature is a fundamental parameter in fluid dynamics and thermodynamics that represents the actual molecular temperature of the fluid at rest.  Total-to-static temperature (T2/T0,2) Total pressure at

Pressure at point two refers to the static pressure of a fluid at a specific location designated as “point two” in a fluid flow field. Static pressure is a fundamental parameter in fluid dynamics and aerodynamics that represents the pressure exerted by a fluid at rest.  Total-to-static pressure (p2/p0,2) Total pressure at point two (p02)

Freestream total temperature (T0,∞​) refers to the total temperature of the incoming fluid flow far upstream from any disturbances or components that could cause energy losses. Total temperature is a concept used in fluid dynamics to account for both the static temperature (due to molecular motion) and the temperature rise associated with the kinetic energy

Loss of total pressure refers to the decrease in total pressure of a fluid flow as it passes through a region with significant energy losses, such as a flow passage with friction, bends, or other forms of flow disturbances.  Upstream total pressure ahead of the shock (p0,1)  Total pressure behind the shock (p0,2)

Total pressure behind the normal shock (p0,2​) refers to the total pressure of a fluid flow immediately downstream (after) of a normal shock wave in a compressible flow field. A normal shock is a type of shock wave that occurs when a fluid flow transitions from a supersonic velocity to a subsonic velocity.  Ratio of

Upstream total pressure(p0,1​) refers to the total pressure of a fluid flow at a specific point located upstream (before) of a reference location in a flow field. Total pressure is a concept used in fluid dynamics to account for both the static pressure due to the fluid’s motion and the dynamic pressure due to its

The characteristic Mach number behind a shock wave (M2*​) is a dimensionless parameter used to describe the flow conditions immediately downstream of a shock wave in compressible fluid dynamics. It’s an important parameter for understanding the behavior of the flow as it transitions from a supersonic region to a subsonic region.  Characteristic Mach number ahead