Aerofoil theory and the axial flow compressor, Other Engineering

Aerofoil theory and the axial flow compressor 

The blades of the axial flow compressor are aerofoils and as such behave in a similar way to aircraft mainplanes and propeller blades. The airflow across their surfaces produces lift and the amount of lift produced by an aerofoil depends on:

a Its shape, area and smoothness of its surface.
b the speed of airflow over the aerofoil.
c the angle at which the aerofoil meets the air.

Once manufactured, their area and shape will remain the same unless they are damaged in any way. Assuming the blades are in good condition, the variables will be the speed of the airflow and the angle at which the blades meet the air (angle of attack).

SPEED OF AIRFLOW OVER BLADES

This will vary with the rpm of the compressor rotor. The faster the rotor turns, then the faster the air flows over the blades. This will result in an increase in the axial velocity of the airflow through the compressor.

ANGLE OF ATTACK

This will vary with the combination of the rotational velocity of the blades and the axial velocity of the airflow. In the normal course of events, the angle of attack (VA) becomes progressively smaller as the compressor moves from a low rpm to a high rpm.(VT)

681_ANGLE OF ATTACK.png

Posted Date: 9/11/2012 9:14:58 AM | Location : United States







Related Discussions:- Aerofoil theory and the axial flow compressor, Assignment Help, Ask Question on Aerofoil theory and the axial flow compressor, Get Answer, Expert's Help, Aerofoil theory and the axial flow compressor Discussions

Write discussion on Aerofoil theory and the axial flow compressor
Your posts are moderated
Related Questions
HELP IN ELECTRONIC...I AM DOING ELECTRONIC ENG. ... GUIDE ME THE WAY...

a pilot entering a bay on course 60.3 degrees at speed 12 miles per hour sees a light bearing 37.3 true and 20 minutes later he sees it bearing 20.0 degrees true. if he keeps the

what is a procedure of solving the questions using hanning window while designing a fir filter?

The experimental set-up of Electron-beam welding. In the electron-beam process, electrons are emitted from the heated filament called the cathode and then focused into a beam wh

Assembly buildings: Assembly buildings are high life risk premises.  People often very densely occupy such buildings and they do so in large numbers so they must be given good


What is the difference between real money & nominal money?  Moderate cash is relevant to the evaluate of keeping track of. nominal figure is what is published on the expenses. w

find the newton raphson iterative formula for a reciprocal of a number N and hence find the value of 1/23.correct to 5 place of decimal

DIVERGENT DUCT A divergent duct widens out as the airflow progresses through it. At subsonic speeds the effect of this kind of duct is to decrease the velocity and increase the p

how does operations reseach enable in revealing new problems