exporting cfx file in tecplot

vij · June 29, 2011, 12:32

HI,
Can anyone tell me hoe to export solution file of CFX in tecplot.I dont find cgns format in cfx.

ghorrocks · June 29, 2011, 18:14

In the solver manager go tools/export and select an appropriate format.

vij · July 2, 2011, 13:01

Thanks!
I am currently forming grids of a kaplan turbine in Gridgen to simulate in CFX.Is there any specific way to make mesh to run in CFX?

Far · July 2, 2011, 13:48

There is no topology limitation on mesh by CFX. Even you can run the mesh with non matching periodic boundaries. However limit on the lower angle is 20 deg, check it out in the CFX help

vij · July 18, 2011, 11:18

I have completed the mesh of the kaplan turbine.How do we assign the boundary conditions ?

ghorrocks · July 18, 2011, 18:31

Sounds like you need to do the CFX tutorials. They explain how the basics work. These come with the CFX installation.

vij · July 25, 2011, 11:54

Hi
I have my boundary conditions now but when I put the physics definition and clicked next,there's an error saying region name "unmatched "was not recognized.Can you tell me when this error occurs?thanks

vij · August 18, 2011, 14:28

hi

sorry for the above question.I am new to CFX actually to CFD.So getting lil difficult to understand. Ghorrocks,as you said I'm going through tutorials and it's helping me a lot.However,I came across a confusion with the reference pressure and total pressure.I have a head of 10.41ft with pressure as inlet boundary condition.Is total pressure a net head rise over atmospheric pressure?IF yes then what should be the reference pressure? I dont know if this is an appropriate question or not,but i would really appreciate you if make me clear about this.

ghorrocks · August 18, 2011, 18:43

The reference pressure should be set at a representative pressure in the simulation. In your case that could either be atmospheric pressure, or maybe atmospheric plus a 10.41ft head. Total pressure includes the contribution from the flow velocity - http://en.wikipedia.org/wiki/Stagnation_pressure

June 29, 2011, 12:32	exporting cfx file in tecplot	#1
vij New Member vij Join Date: Jun 2011 Posts: 6 Rep Power: 14	HI, Can anyone tell me hoe to export solution file of CFX in tecplot.I dont find cgns format in cfx.

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June 29, 2011, 18:14		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	In the solver manager go tools/export and select an appropriate format.

July 2, 2011, 13:01		#3
vij New Member vij Join Date: Jun 2011 Posts: 6 Rep Power: 14	Thanks! I am currently forming grids of a kaplan turbine in Gridgen to simulate in CFX.Is there any specific way to make mesh to run in CFX?

July 2, 2011, 13:48		#4
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	There is no topology limitation on mesh by CFX. Even you can run the mesh with non matching periodic boundaries. However limit on the lower angle is 20 deg, check it out in the CFX help

July 18, 2011, 11:18		#5
vij New Member vij Join Date: Jun 2011 Posts: 6 Rep Power: 14	I have completed the mesh of the kaplan turbine.How do we assign the boundary conditions ?

July 18, 2011, 18:31		#6
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Sounds like you need to do the CFX tutorials. They explain how the basics work. These come with the CFX installation.

July 25, 2011, 11:54		#7
vij New Member vij Join Date: Jun 2011 Posts: 6 Rep Power: 14	Hi I have my boundary conditions now but when I put the physics definition and clicked next,there's an error saying region name "unmatched "was not recognized.Can you tell me when this error occurs?thanks

August 18, 2011, 14:28		#8
vij New Member vij Join Date: Jun 2011 Posts: 6 Rep Power: 14	hi sorry for the above question.I am new to CFX actually to CFD.So getting lil difficult to understand. Ghorrocks,as you said I'm going through tutorials and it's helping me a lot.However,I came across a confusion with the reference pressure and total pressure.I have a head of 10.41ft with pressure as inlet boundary condition.Is total pressure a net head rise over atmospheric pressure?IF yes then what should be the reference pressure? I dont know if this is an appropriate question or not,but i would really appreciate you if make me clear about this.

August 18, 2011, 18:43		#9
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	The reference pressure should be set at a representative pressure in the simulation. In your case that could either be atmospheric pressure, or maybe atmospheric plus a 10.41ft head. Total pressure includes the contribution from the flow velocity - http://en.wikipedia.org/wiki/Stagnation_pressure