The mass flow rate through a divergent nozzle is the amount of fluid (gas) passing through the nozzle per unit time. In the context of a divergent nozzle, this nozzle geometry accelerates the flow, converting pressure energy into kinetic energy, and plays a crucial role in the performance of propulsion systems like rocket engines and jet turbines.
The mass flow rate can be expressed as:
ṁ =ρ*A*V, and V=M*a
which gives,
where,
- ṁ is the mass flow rate of the nozzle
- is the density of the exhaust gases at the throat
- A is the throat nozzle area
- M is the Mach Number
- a is the speed of sound in the medium