The inlet of a turbo fan is
- divergent
- convergent
- convergent-divergent
Explanation
A subsonic turbofan intake acts as a divergent diffuser: the duct area increases rearward so incoming air slows and its static pressure rises before reaching the fan, improving compression efficiency. A convergent or convergent-divergent shape would accelerate the flow, which is not wanted at the fan face on a subsonic engine.
eldhosekottalil asking:
the area of turbofan engine is like a convergent type na?
more area in intake and decreasing the area while going inside na??
please clarify me
Community Comments (3)
D
dimky Posts: 514 20.04.2012 / 22:20
Hello!
I agree with you. Question corrected. Thank you. :)
I agree with you. Question corrected. Thank you. :)
C
chris146 Posts: 7 23.04.2012 / 18:55
it is divergent, to slow the velocity of the air before entering the engine? if you look at the shape of a turbofan it starts as a divergent duct and changes to a convergent as you pass through the stages of compresser and turbine. think the question was correct originally
D
dimky Posts: 514 23.04.2012 / 20:08
Indeed. Inlet is divergent but compressor itself is convergent. Thanks Chris!
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