Pressure profile as internal field

Chris123 · May 3, 2019, 03:44

Hi there,
is it possible to set the internalfield with nonuniform values, for example
I want to set the internalfield for pressure with pressure values which variing inside the domain (over height).So more or less to set
a profile (height vs pressure) as the internalfield for pressure like this:

internalField nonuniform List<scalar>

27
(
0 101300
10 101173
50 100669
100 100042
150 99420
200 98801
250 98186
300 97574
350 96967
400 96363
450 95764
500 95167
600 93986
700 92820
800 91668
900 90530
1000 89407
1200 87201
1400 85050
1600 82952
1800 80906
)

;
But this does not work, here OF complains that not all (Millions) of cells are filled. Any idea how to do this, if possible?

clapointe · May 3, 2019, 23:01

Yes, I'm sure there are many possible ways, but the first thing I thought of is funkySetFields : https://openfoamwiki.net/index.php/C...Foam#Utilities.

Caelan

Chris123 · May 6, 2019, 02:38

Dear Caelan,
thanks for your help, but I think funkysetfields isn't suitable because how can you apply the Pressure profile for the complete domain by using this tool?
But maby you can show me by an example?
Best regards,
Chris

clapointe · May 6, 2019, 03:08

With funkySetFields you can set initialize the field with values calculated with an arbitrary expression -- is this not what you want? There are plenty of examples online.

Caelan

May 3, 2019, 03:44	Pressure profile as internal field	#1
Chris123 Member Chris Schäfer Join Date: Apr 2017 Posts: 34 Rep Power: 9	Hi there, is it possible to set the internalfield with nonuniform values, for example I want to set the internalfield for pressure with pressure values which variing inside the domain (over height).So more or less to set a profile (height vs pressure) as the internalfield for pressure like this: internalField nonuniform List<scalar> 27 ( 0 101300 10 101173 50 100669 100 100042 150 99420 200 98801 250 98186 300 97574 350 96967 400 96363 450 95764 500 95167 600 93986 700 92820 800 91668 900 90530 1000 89407 1200 87201 1400 85050 1600 82952 1800 80906 ) ; But this does not work, here OF complains that not all (Millions) of cells are filled. Any idea how to do this, if possible?

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May 3, 2019, 23:01		#2
clapointe Senior Member Join Date: Aug 2015 Posts: 494 Rep Power: 15	Yes, I'm sure there are many possible ways, but the first thing I thought of is funkySetFields : https://openfoamwiki.net/index.php/C...Foam#Utilities. Caelan

May 6, 2019, 02:38		#3
Chris123 Member Chris Schäfer Join Date: Apr 2017 Posts: 34 Rep Power: 9	Dear Caelan, thanks for your help, but I think funkysetfields isn't suitable because how can you apply the Pressure profile for the complete domain by using this tool? But maby you can show me by an example? Best regards, Chris

May 6, 2019, 03:08		#4
clapointe Senior Member Join Date: Aug 2015 Posts: 494 Rep Power: 15	With funkySetFields you can set initialize the field with values calculated with an arbitrary expression -- is this not what you want? There are plenty of examples online. Caelan