Rotor blade design problem for turbomachine

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SUMMARY

The discussion focuses on determining the camber angle of a rotor blade for an axial flow turbomachine using the equation Beta1 - Beta2 = Camber angle (theta). The user is uncertain about the correct placement of angles in their diagram and questions whether the camber angle should be zero degrees or 90 degrees based on the inlet and exit blade angles. The inquiry emphasizes the importance of accurately representing the circular camber line and the angles involved in turbomachinery design.

PREREQUISITES
  • Understanding of axial flow turbomachines
  • Familiarity with camber angle calculations
  • Knowledge of blade angle definitions (Beta1 and Beta2)
  • Basic skills in technical drawing and diagram interpretation
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  • Study the effects of blade angle variations on performance
  • Learn about computational fluid dynamics (CFD) simulations for turbomachines
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Mechanical engineers, turbomachinery designers, students studying fluid dynamics, and anyone involved in rotor blade design and analysis.

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Homework Statement



Determine the camber angle of a rotor blade for an axial flow turbomachine.

Homework Equations



Beta1 - Beta2 = Camber angle (theta)

The Attempt at a Solution



http://img517.imageshack.us/img517/2965/blade.jpg


If the camber angle is equal to beta1 minus beta2 then it should be zero degrees unless minus angle(s) are used?

Have I put the various angles in their proper positions in the diagram?

Thank you for any help.
 
Last edited by a moderator:
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I think perhaps I have not explained my problem adequately.

Taking the circular camber line (representing the centre of a turbomachinery blade in profile), have I drawn the inlet and exit blade angles properly; are they both 45 degrees (for a circular curve) and is the camber angle, ion this case, 90 degrees?
 

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