External Input Data read as Boundary Conditions

uwsa · August 10, 2010, 11:24

Dear CFX- Experts,

I am dealing with a time-dependent problem with variation of the Boundary Conditions by time.
like

Time[s] Pressure Massflow Temperature
1 0.5 1.5 300
2 0.6 1.4 310
3 0.5 1.5 300
.. .. .. ..
.. .. .. ..
.. .. .. ..
2 0.6 1.4 310

I really don' t know how i can set up this problem! Is there a possibility to read extern data in CFX? If yes could you help me? Or is there another option to handle such problems?

Thanks a lot to all

uswsa

ghorrocks · August 10, 2010, 23:05

Use a 1D interpolation function. You will need a separate function for each of pressure, massflow and temp. This is easily setup in CFX-Pre.

uwsa · August 12, 2010, 04:34

Hi Glenn,

thank you it is working and I hope the calculation will finish well.

August 10, 2010, 11:24	External Input Data read as Boundary Conditions	#1
uwsa New Member Erkan Join Date: May 2010 Posts: 9 Rep Power: 16	Dear CFX- Experts, I am dealing with a time-dependent problem with variation of the Boundary Conditions by time. like Time[s] Pressure Massflow Temperature 1 0.5 1.5 300 2 0.6 1.4 310 3 0.5 1.5 300 .. .. .. .. .. .. .. .. .. .. .. .. 2 0.6 1.4 310 I really don' t know how i can set up this problem! Is there a possibility to read extern data in CFX? If yes could you help me? Or is there another option to handle such problems? Thanks a lot to all uswsa

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[Netgen] boundary conditions and mesh exporting	vaina74	OpenFOAM Meshing & Mesh Conversion	2	May 27, 2010 10:38
Application of real data as boundary conditions	mea05ae	Main CFD Forum	0	April 13, 2009 11:34
Concentric tube heat exchanger (Air-Water)	Young	CFX	5	October 7, 2008 00:17
Boundary Conditions for External Flow	raytracer	OpenFOAM Running, Solving & CFD	4	July 14, 2008 13:18
Convective Heat Transfer - Heat Exchanger	Mark	CFX	6	November 15, 2004 16:55

August 10, 2010, 23:05		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	Use a 1D interpolation function. You will need a separate function for each of pressure, massflow and temp. This is easily setup in CFX-Pre.

August 12, 2010, 04:34		#3
uwsa New Member Erkan Join Date: May 2010 Posts: 9 Rep Power: 16	Hi Glenn, thank you it is working and I hope the calculation will finish well.