Boundary types in Gambit

bidi · June 1, 2006, 03:26

can anybody tell me what is the difference between the boundary types: INTERIOR and INTERNAL in GAMBIT (BOUNDARY SPECIFICATION MENU) and when can one define a face (in a 3D-geometry) as INTERNAL or INTERIOR

Thanks in Advance

cfdproject · March 31, 2009, 15:40

I am looking for the same answer .Can any body tell me where I can find the details explanations for each boundary types
Thank you

Laci · March 31, 2009, 17:37

Practically, interior doesn't mean anything. A surface is there without any function. (interior like the whole volume is). You cannot adjust anything.
Internal can have some specific properties (thickness e.g.)

cfdproject · April 2, 2009, 14:01

I am working in a heat transfer over a fins with an inlet velocity of 1m/s and heat flux of 100W amd everytime I run it in fluent I get this
Error:
FLUENT received fatal signal (ACCESS_VIOLATION)
1. Note exact events leading to error.
2. Save case/data under new name.
3. Exit program and restart to continue.
4. Report error to your distributor.
Error Object: ()

Does anybody know how I can fix my error and where can I get a explanation of my error
Thank you

Sashankh · April 29, 2009, 04:45

hi,

even im working on the flow over fins. I got that error and was able to rectify it.. what are your boundary conditions? in my case i have modeled a tube (water flowing through)a nd air flowing across.. the tube runs through a fin like a heat exchanger. i am having trouble giving the boundary conditions for the tube walls. any suggestions?

gmwsy · March 8, 2010, 05:25

Quote:

Originally Posted by Madhukar Rapaka
;132823

can anybody tell me what is the difference between the boundary types: INTERIOR and INTERNAL in GAMBIT (BOUNDARY SPECIFICATION MENU) and when can one define a face (in a 3D-geometry) as INTERNAL or INTERIOR

Thanks in Advance

Interior simply means they are fluid edges, not walls or anything else.

I got the information from the following URL:
http://www.mne.psu.edu/cimbala/Learn...it_airfoil.htm

Have fun

.

Shengyi

gmwsy · March 8, 2010, 05:26

Quote:

Originally Posted by cfdproject

I am looking for the same answer .Can any body tell me where I can find the details explanations for each boundary types
Thank you

Please see the previous reply for this question

Severus · March 11, 2017, 05:18

This link might be useful to know about internal boundaries
https://lyle.smu.edu/me/7337/fluent_bcs.pdf

June 1, 2006, 03:26	Boundary types in Gambit	#1
Madhukar Rapaka Guest Posts: n/a	can anybody tell me what is the difference between the boundary types: INTERIOR and INTERNAL in GAMBIT (BOUNDARY SPECIFICATION MENU) and when can one define a face (in a 3D-geometry) as INTERNAL or INTERIOR Thanks in Advance bidi likes this.

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March 31, 2009, 15:40		#2
cfdproject New Member bilquise Join Date: Mar 2009 Posts: 14 Rep Power: 17	I am looking for the same answer .Can any body tell me where I can find the details explanations for each boundary types Thank you

March 31, 2009, 17:37		#3
Laci Member anonym Join Date: Mar 2009 Posts: 65 Rep Power: 17	Practically, interior doesn't mean anything. A surface is there without any function. (interior like the whole volume is). You cannot adjust anything. Internal can have some specific properties (thickness e.g.)

April 2, 2009, 14:01		#4
cfdproject New Member bilquise Join Date: Mar 2009 Posts: 14 Rep Power: 17	I am working in a heat transfer over a fins with an inlet velocity of 1m/s and heat flux of 100W amd everytime I run it in fluent I get this Error: FLUENT received fatal signal (ACCESS_VIOLATION) 1. Note exact events leading to error. 2. Save case/data under new name. 3. Exit program and restart to continue. 4. Report error to your distributor. Error Object: () Does anybody know how I can fix my error and where can I get a explanation of my error Thank you

April 29, 2009, 04:45		#5
Sashankh New Member Join Date: Mar 2009 Posts: 16 Rep Power: 17	hi, even im working on the flow over fins. I got that error and was able to rectify it.. what are your boundary conditions? in my case i have modeled a tube (water flowing through)a nd air flowing across.. the tube runs through a fin like a heat exchanger. i am having trouble giving the boundary conditions for the tube walls. any suggestions?

March 11, 2017, 05:18		#8
Severus Member Shravan Join Date: Mar 2017 Posts: 58 Rep Power: 9	This link might be useful to know about internal boundaries https://lyle.smu.edu/me/7337/fluent_bcs.pdf