how to calculate swirl without using swirl generators

drsrinivasan · November 22, 2012, 00:31

Sir,
I am working on simulation of combustion process in axial flow gas tubine combustor. The main reference journal paper has s 2-D model and no information about the swirler. They have solved for swirl number 0.37,0.76 and 1.2. The air inlet ratios are as follows
primary(axial):secondary(radial):dilution(radial) as 5:7:8. Now, I am looking forward for a method to calculate swirl. Is there any formula/method to calculate swirl in terms of velocities. I request you to help me.

Far · November 22, 2012, 02:42

Give the angle to flow components. For example V*cos and V*Sin

FMDenaro · November 22, 2012, 07:31

try reading
Int. J. Numer. Meth. Fluids 2010; 64:945–972

November 22, 2012, 00:31	how to calculate swirl without using swirl generators	#1
drsrinivasan New Member srinivasan Join Date: Nov 2012 Location: pulivendula Posts: 5 Rep Power: 14	Sir, I am working on simulation of combustion process in axial flow gas tubine combustor. The main reference journal paper has s 2-D model and no information about the swirler. They have solved for swirl number 0.37,0.76 and 1.2. The air inlet ratios are as follows primary(axial):secondary(radial):dilution(radial) as 5:7:8. Now, I am looking forward for a method to calculate swirl. Is there any formula/method to calculate swirl in terms of velocities. I request you to help me.

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November 22, 2012, 02:42		#2
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	Give the angle to flow components. For example Vcos and VSin

November 22, 2012, 07:31		#3
FMDenaro Senior Member Filippo Maria Denaro Join Date: Jul 2010 Posts: 6,896 Rep Power: 73	try reading Int. J. Numer. Meth. Fluids 2010; 64:945–972