Normalized Helicity

az_f · March 19, 2012, 00:06

Hi
How can I normalized helicity in cfx-post. I just used
velocity.Absolute helicity/(abs(velocity)*abs(vorticity))

but still got the [m^-1] unit. Am I missing something?

Thanks

gypas · July 1, 2012, 10:22

normalized helicity is defined as (Velocity dot Helcity)/(Magnitude (Velocity) * Magnitude (Vorticity)
CFX does not calculate dot product directly, you need to create manually, i.e. create an expression in CFX post and then create a variable and select the expression you just created.

csmistry · October 31, 2012, 08:00

Can you please elaborate how to do this dot product in CCL for helicity term

March 19, 2012, 00:06	Normalized Helicity	#1
az_f Member Join Date: Mar 2009 Posts: 48 Rep Power: 17	Hi How can I normalized helicity in cfx-post. I just used velocity.Absolute helicity/(abs(velocity)*abs(vorticity)) but still got the [m^-1] unit. Am I missing something? Thanks

July 1, 2012, 10:22		#2
gypas New Member catherina Join Date: May 2009 Posts: 7 Rep Power: 17	normalized helicity is defined as (Velocity dot Helcity)/(Magnitude (Velocity) * Magnitude (Vorticity) CFX does not calculate dot product directly, you need to create manually, i.e. create an expression in CFX post and then create a variable and select the expression you just created. az_f likes this.

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October 31, 2012, 08:00		#3
csmistry Member mistry Join Date: Apr 2009 Location: India Posts: 69 Rep Power: 17	Can you please elaborate how to do this dot product in CCL for helicity term