Meshing a nozzle

parvaz747 · April 9, 2013, 11:39

I want to solve a 2-dimension DC nozzle flow in fluent. I want to use komega SST turbulence model. I have some problems in meshing the nozzle. nozzle is designed for mach number of 2.
For kw-SST what is the better value of y+?
What is the value of 1st raw thickness and number of layers?
thank you.

Far · April 26, 2013, 12:43

Parvaz which software you want to use for meshing?

cartman · April 28, 2013, 08:55

I love to set parameters as exponential law at nozzle-wall,

usually 0.001 mm, ratio of 1.2 is given for my simulation

(that conditions well predict the boundary layer/flow separation around the wall)

- sorry about my weird writes, I'm not good at English -

tranchitam · June 17, 2013, 12:40

Can you post the geometry of the nozzle? Give me some info,maybe I can help

April 9, 2013, 11:39	Meshing a nozzle	#1
parvaz747 New Member parviz hash Join Date: May 2012 Posts: 16 Rep Power: 14	I want to solve a 2-dimension DC nozzle flow in fluent. I want to use komega SST turbulence model. I have some problems in meshing the nozzle. nozzle is designed for mach number of 2. For kw-SST what is the better value of y+? What is the value of 1st raw thickness and number of layers? thank you.

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April 26, 2013, 12:43		#2
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	Parvaz which software you want to use for meshing?

April 28, 2013, 08:55		#3
cartman Member Chris, Kam Join Date: Nov 2010 Location: Busan, South Korea Posts: 42 Rep Power: 16	I love to set parameters as exponential law at nozzle-wall, usually 0.001 mm, ratio of 1.2 is given for my simulation (that conditions well predict the boundary layer/flow separation around the wall) - sorry about my weird writes, I'm not good at English -

June 17, 2013, 12:40		#4
tranchitam New Member Join Date: Jan 2011 Posts: 5 Rep Power: 15	Can you post the geometry of the nozzle? Give me some info,maybe I can help