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From this project I learned how different factors in a turbo fan engine will impact its performance in different areas. The easiest part was changing the values in the engine itself because it was simply changing values in different boxes and categories. The hardest part was the table simply because it had so many things to fill out and manage throughout the process; however, my partner and I took it slow on the first day and spent the majority of the block focusing on finishing the table and getting the data we needed.
Engine net thrust- Thrust minus drag of an engine due to momentum
Fuel flow rate- Rate a substance passes over a period of time
Engine air flow rate- Amount of air passing through a certain area in a certain given time
Engine weight- Net mass of an engine
Thrust to weight ratio- Ratio of the amount of thrust an engine of a certain weight can provide
Specific fuel consumption- Fuel efficiency of an engine(thrust per amount of fuel used)
Fuel-to-air ratio- The ratio of air and fuel required to combust for maximum thrust in an engine.
Engine pressure ratio (EPR)- Pressure at the entrance of and engine compared to the pressure at the exit
Engine temperature ratio (ETR)- Temperature of the input compared to the output of an engine
Gross thrust- Total thrust created by an engine
Ram drag- Difference between the gross thrust and the net thrust
Nozzle pressure ratio (NPR)- The difference in pressure from the front of the engine to the nozzle
Engine thermal efficiency- Determines how much of an engines energy is lost to outside factors, such as the air
Nozzle exit velocity (V exit)- how fast the air is moving on exit of the nozzle of an engine
Free stream dynamic pressure (q0)- Difference between a flowing fluids pressure and static fluids pressure
Specific impulse (ISP)- measures how effective an engine is at using fuel
Nozzle exit pressure (Pexit)- The pressure of the air leaving the nozzle
Fan nozzle exit pressure (P fan exit)- Pressure of air leaving the fan of an engine
Compressor face Mach number (M2)- value representing the ratio of flow velocity past a boundary to the speed of sound
Variation of total pressure and temperature through the engine- Difference of air pressure and temp through engine
Overall engine efficiency- How efficiently an engine can create thrust due to its size and weight
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