EAS201: In an ideal unmixed-exhaust turbofan engine where the exhaust exit pressures of both the core engine: Aerospace Propulsion Assignment, SUSS

Question 4

Question 4a
In an ideal unmixedโ€“exhaust turbofan engine where the exhaust exit pressures of both the core engine and bypass duct are equal to ambient pressure, the thrust produced by the core engine ๐น๐ถ, and the fan ๐น๐น are:

Where
๐‘šฬ‡ ๐ถ = mass flowrate of air through core engine

๐‘šฬ‡ ๐น = mass flowrate of air through bypass duct

๐‘šฬ‡๐‘“ = fuel mass flowrate

๐‘‰0 = forward velocity

๐‘‰9 = core engine exhaust nozzle exit velocity

๐‘‰19 = bypass duct nozzle exit velocity

Write My Assignment
Hire a Professional Essay & Assignment Writer for completing your Academic Assessments

Native Singapore Writers Team

100% Plagiarism-Free Essay
Highest Satisfaction Rate
Free Revision
On-Time Delivery

Question 4a(i)
For a turbofan engine, explain the term specific thrust. If its bypass ratio ๐›ผ = ๐‘šฬ‡ ๐น/๐‘šฬ‡ ๐ถ, show that the specific thrust can be expressed as:

Question 4a(ii)
Define the term thrust specific fuel consumption of a turbofan engine, and hence show that it can be expressed in terms of its specific thrust as in the following:

Question 4b
At forward speed of 750 km/h, a turbofan engine with bypass ratio of 5 has a fuel-air ratio of 0.03. At the exhaust nozzles of both the bypass duct and core engine, the gases are fully expanded. The bypass exhaust exits at 450 m/s while the core engine exhaust exits at 500 m/s. Analyse the engine specific thrust.

Buy Custom Answer of This Assessment & Raise Your Grades
Get A Free Quote

The post EAS201: In an ideal unmixed-exhaust turbofan engine where the exhaust exit pressures of both the core engine: Aerospace Propulsion Assignment, SUSS appeared first on Singapore Assignment Help.