Model scale down automatic in CFX Post.

aniketbajare · October 24, 2019, 05:03

In cfx pre my model dimensions are 0.100m, but after solving in cfx post model automatically scale down to 0.0001m. so I'm getting wrong resluts.
So how to scale up model in cfx post.

AtoHM · October 24, 2019, 05:09

There must be some other reason causing this and I think scaling the model back is not the way to go. Something must be wrong somewhere else.
How did you figure out the dimensions have changed?

aniketbajare · October 24, 2019, 05:17

@AtoHM
There is a scale bar below very geometry. From that we can find out your geometry dimensions.
Thanks for you quick response

AtoHM · October 24, 2019, 05:59

Could you post an image of pre and post so we can compare? Never seen anything like that before ..

Opaque · October 24, 2019, 16:22

What software did you use to generate the mesh?

Have you checked the mesh statistics in CFX-Pre? Right-click on the mesh folder, select Mesh Statistics and look at the ranges for each axis

aniketbajare · October 25, 2019, 03:47

Hello all, issue resolved.
For future reference explanation regarding issue.
Unit system of geometry , mesh and set up should be same.
For example-
If your geometry dimensions are like (0.100m)
Mesh dimensions like (1mm)
Set up dimension like (0.100m)
Then sometimes it will create problem.
Try to use same unit system for all steps.

October 24, 2019, 05:03	Model scale down automatic in CFX Post.	#1
aniketbajare New Member aniket bajare Join Date: Sep 2015 Posts: 4 Rep Power: 11	In cfx pre my model dimensions are 0.100m, but after solving in cfx post model automatically scale down to 0.0001m. so I'm getting wrong resluts. So how to scale up model in cfx post.

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October 24, 2019, 05:09		#2
AtoHM Senior Member M Join Date: Dec 2017 Posts: 703 Rep Power: 13	There must be some other reason causing this and I think scaling the model back is not the way to go. Something must be wrong somewhere else. How did you figure out the dimensions have changed?

October 24, 2019, 05:17		#3
aniketbajare New Member aniket bajare Join Date: Sep 2015 Posts: 4 Rep Power: 11	@AtoHM There is a scale bar below very geometry. From that we can find out your geometry dimensions. Thanks for you quick response

October 24, 2019, 05:59		#4
AtoHM Senior Member M Join Date: Dec 2017 Posts: 703 Rep Power: 13	Could you post an image of pre and post so we can compare? Never seen anything like that before ..

October 24, 2019, 16:22		#5
Opaque Senior Member Join Date: Jun 2009 Posts: 1,880 Rep Power: 33	What software did you use to generate the mesh? Have you checked the mesh statistics in CFX-Pre? Right-click on the mesh folder, select Mesh Statistics and look at the ranges for each axis

October 25, 2019, 03:47		#6
aniketbajare New Member aniket bajare Join Date: Sep 2015 Posts: 4 Rep Power: 11	Hello all, issue resolved. For future reference explanation regarding issue. Unit system of geometry , mesh and set up should be same. For example- If your geometry dimensions are like (0.100m) Mesh dimensions like (1mm) Set up dimension like (0.100m) Then sometimes it will create problem. Try to use same unit system for all steps.