The performance of a ramjet engine is typically characterized by key parameters that assess its efficiency and effectiveness in generating thrust. The performance of a ramjet engine can be evaluated using various metrics, including specific thrust, thermal efficiency, and overall thrust.
The overall thrust generated by a ramjet engine is the primary performance metric and depends on factors such as air mass flow rate and combustion efficiency.
Formula for thrust (T):
T=ṁ(Ve−V0)
Where:
- T is the thrust generated by the engine (in Newtons, N).
- ṁ is the air mass flow rate (in kilograms per second, kg/s).
- Ve is the exhaust velocity of the engine (in meters per second, m/s).
- V0 is the inlet velocity of the incoming air (in meters per second, m/s).