Please I need ur Help : Wheel speed

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Discussion Overview

The discussion revolves around the concept of wheel speed in an axial compressor, specifically addressing whether the term refers to rotational speed or a value for axial velocity. Participants seek clarification on the meaning of wheel speed in the context of compressor operation.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant asks for clarification on whether the wheel speed of U = 50 m/s refers to rotational speed or axial velocity.
  • Another participant suggests that the wheel speed is most likely the linear tip speed, indicating it cannot be rotational velocity measured in m/s.
  • A different participant states that the wheel speed is generally the rotational speed, but notes that it is typically expressed in radians/s rather than m/s, questioning if the original context was misunderstood.

Areas of Agreement / Disagreement

Participants express differing views on the interpretation of wheel speed, with no consensus reached on its definition in this context.

Contextual Notes

There may be limitations regarding the definitions of terms used, as well as the context in which wheel speed is applied in axial compressors.

haa72
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Plz I need ur urgent Help : Wheel speed

what is the wheel speed in an axial compressor ?
for example when we say that the axial velocity remains constant and equal to the wheel speed of U = 50 m/s?
Does this refer to the rotational speed , or just a value for the axial velocity ?

Please I need your urgent Help as soon as possible .

Thanks In advance
 
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Wow , many views but no answer ??
I don't hink it is a difficukt question although I didnt know it :)
 
That will, most likely, be the linear tip speed. It can't be rotational velocity with units of m/s.
 
haa72 said:
what is the wheel speed in an axial compressor ?
for example when we say that the axial velocity remains constant and equal to the wheel speed of U = 50 m/s?
Does this refer to the rotational speed , or just a value for the axial velocity ?

Please I need your urgent Help as soon as possible .

Thanks In advance

The wheel speed of a compressor is generally the rotational speed (if memory serves me correctly). However, like Fred pointed out, it is normally not in m/s but rather radians/s. Are you taking it out of context perhaps?

Chris
 

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