What is Velocity Alpha in CFX post?

Saima · November 20, 2012, 15:40

What is velocity ALpha and Beta is CFX post?

Is it flow angle and metal angles?

ghorrocks · November 20, 2012, 18:23

Velocity beta is the factor used in the high Res differencing scheme. Can't remember off the top of my head what alpha is.

brunoc · November 21, 2012, 09:11

Yes, alpha is usually the flow angle, but CFD-Post calls it 'Velocity Flow Angle'. Where are you getting these variables? What version are you working with?

Saima · November 21, 2012, 15:12

I am working on CFX-14. But it was available in versions 12 & 13 as well.

It appears in CFD post, after Turbo initialization. I found explanation under: "Appendix A: A Note on Sign Convention for Angles and Velocities in Vista TF"

this is definition of alpha and beta, But I am still not sure is it referencing same as plot generating in CFD-post?

Thanks in advance!!!

Quote:

Originally Posted by brunoc

Yes, alpha is usually the flow angle, but CFD-Post calls it 'Velocity Flow Angle'. Where are you getting these variables? What version are you working with?

November 20, 2012, 15:40	What is Velocity Alpha in CFX post?	#1
Saima Senior Member Saima Join Date: Apr 2009 Location: Canada Posts: 185 Rep Power: 16	What is velocity ALpha and Beta is CFX post? Is it flow angle and metal angles? __________________ Best Redards, Saima

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November 20, 2012, 18:23		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,872 Rep Power: 144	Velocity beta is the factor used in the high Res differencing scheme. Can't remember off the top of my head what alpha is.

November 21, 2012, 09:11		#3
brunoc Senior Member Bruno Join Date: Mar 2009 Location: Brazil Posts: 277 Rep Power: 21	Yes, alpha is usually the flow angle, but CFD-Post calls it 'Velocity Flow Angle'. Where are you getting these variables? What version are you working with?