Error in reading case and data file. Please Help!

noa · February 28, 2011, 06:14

My model is a 2D rectangular channel. I am able to move the upper and lower walls of the channel in constant velocity by using udf. I can run the case and look at the results. However when I try to download the results after I saved it (File>write>case and data) , the following error appear:
Error: Build Grid: Aborted due to critical error.
Error Object: #f
Error: access: unbound variable
Error Object: get-var.

Does someone can offer something???!!!!????

Amir · February 28, 2011, 10:11

if your velocities are constant, why did you use UDF?
if you use dynamic mesh!! it may be the result of negative volumes!

noa · February 28, 2011, 11:09

I don't get negative volumes. Actually its running and I can see the results. However, when I try to download it, it says that error.

How do you do it without udf? BC with moving wall. right?

Amir · February 28, 2011, 11:22

Quote:

Originally Posted by noa

I don't get negative volumes. Actually its running and I can see the results. However, when I try to download it, it says that error.

How do you do it without udf? BC with moving wall. right?

yes, I think moving wall boundaty condition is more reasonable for your case,isn't it?

noa · February 28, 2011, 14:04

I will try do that. However it doesn't make sense that the simulation is running and the files are being saved automtically but I can't read them.
Do you have any idea?

noa · March 1, 2011, 02:59

I changed the constant velocity (in the udf) of the upper and lower walls of the channel to time dependent velocity. I can saving the data and case but I am not able to read it.

Can you think why????

Thank you

Amir · March 1, 2011, 08:46

I have to suggestions:
1)keep velocities constant and check whether your problem exists!
2)if you interpreted your UDF, try compiled one and check!

noa · March 6, 2011, 05:26

I realized my problem. I used dynamic mesh to move an interior wall. The case was running but couldn't be read after I saved it. When I changed my model and moved the wall (not as an interior), it was able run, save and read.

February 28, 2011, 06:14	Error in reading case and data file. Please Help!	#1
noa Member anonymous Join Date: Feb 2011 Posts: 47 Rep Power: 8	My model is a 2D rectangular channel. I am able to move the upper and lower walls of the channel in constant velocity by using udf. I can run the case and look at the results. However when I try to download the results after I saved it (File>write>case and data) , the following error appear: Error: Build Grid: Aborted due to critical error. Error Object: #f Error: access: unbound variable Error Object: get-var. Does someone can offer something???!!!!????

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February 28, 2011, 10:11		#2
Amir Senior Member Amir Join Date: May 2009 Location: Montreal, QC Posts: 739 Blog Entries: 1 Rep Power: 16	if your velocities are constant, why did you use UDF? if you use dynamic mesh!! it may be the result of negative volumes!

February 28, 2011, 11:09		#3
noa Member anonymous Join Date: Feb 2011 Posts: 47 Rep Power: 8	I don't get negative volumes. Actually its running and I can see the results. However, when I try to download it, it says that error. How do you do it without udf? BC with moving wall. right?

February 28, 2011, 14:04		#5
noa Member anonymous Join Date: Feb 2011 Posts: 47 Rep Power: 8	I will try do that. However it doesn't make sense that the simulation is running and the files are being saved automtically but I can't read them. Do you have any idea?

March 1, 2011, 02:59		#6
noa Member anonymous Join Date: Feb 2011 Posts: 47 Rep Power: 8	I changed the constant velocity (in the udf) of the upper and lower walls of the channel to time dependent velocity. I can saving the data and case but I am not able to read it. Can you think why???? Thank you

March 1, 2011, 08:46		#7
Amir Senior Member Amir Join Date: May 2009 Location: Montreal, QC Posts: 739 Blog Entries: 1 Rep Power: 16	I have to suggestions: 1)keep velocities constant and check whether your problem exists! 2)if you interpreted your UDF, try compiled one and check!

March 6, 2011, 05:26		#8
noa Member anonymous Join Date: Feb 2011 Posts: 47 Rep Power: 8	I realized my problem. I used dynamic mesh to move an interior wall. The case was running but couldn't be read after I saved it. When I changed my model and moved the wall (not as an interior), it was able run, save and read.