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Old 1st Jan 2011, 18:25
  #52 (permalink)  
Join Date: Nov 2007
Location: United Kingdom
Age: 66
Posts: 710
The compressor is accelerating the air into the combustion chamber, not slowing it down when the aircraft is static, or at at slow speed. 'Inlet drag' becomes a factor at higher Mach numbers, I believe.
Err, the air is considerably slowed-down in the compressor i.e. it's a convergent duct. The air is then accellerated in the diffuser (a divergent duct) and directed into the combustion chamber.
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