The mass flow rate ṁ 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:
where,
- ṁ is the mass flow rate through the convergent nozzle in KGs/sec
- ρ is the density of the medium
- A is the nozzle throat area
- the velocity of the flow in terms of the local speed of sound