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Does A Compressor Blade Produce Lift?  
User currently offlineDaniel From Sweden, joined May 2005, 0 posts, RR: 0
Posted (14 years 6 months 1 week 5 days 12 hours ago) and read 853 times:

In college today my lecturer was discussing whether a compressor blade produces lift or not?
It has an airfoil shape, curved on top and flat on the bottom therefor LP air on top and HP air on bottom.

Anyone have any other theories???

2 replies: All unread, jump to last
 
User currently offlineDelta737 From United States of America, joined Jun 1999, 516 posts, RR: 10
Reply 1, posted (14 years 6 months 1 week 5 days 10 hours ago) and read 829 times:

Yes, a compressor blade produces lift. If you look at a book entitled "The urbine Pilot's Guide" it discusses it in a lot of detail.

Doug Taylor
Delta 737 Pilot
http://www.jetcareers.com


User currently offlineBuff From Australia, joined Mar 2007, 0 posts, RR: 1
Reply 2, posted (14 years 6 months 1 week 5 days 8 hours ago) and read 824 times:

Agreed. Listen to your professor! (Just kidding - it's good to question things in this business.)

In the same way, a propeller blade be it turbine powered or piston powered produces lift as well. But not lift for the airplane, lift for the propeller in the forward direction. Same with a helicopter rotor. Same with the fan at the front of the turbofan. When you get into the inner workings of the jet engine though, the amount of forward velocity generated by the lift produced by individual blades is minimal when compared to the thrust generated and the power produced for the power turbine(s) i.e. the turbines that drive the fan.

Hope that makes sense.

Best Regards,

Buff


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