|
[Sponsors] |
How to write read/write piecewise linear variation of properties in fluent |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
February 3, 2012, 10:00 |
How to write read/write piecewise linear variation of properties in fluent
|
#1 |
New Member
Yogesh Patil
Join Date: Nov 2009
Posts: 20
Rep Power: 16 |
I am running several cases which involves piecewise linear variation of 3 properties and functions. I wouldn't have problem if I have to enter for 4-5 pints. But I need to enter for around 15 points which is really painfull. So I was wondering if there is any way in fluent wherein I can read the file and it would update the linear variation of properties. So I don't need to do it manually.
Thanks |
|
February 5, 2012, 11:02 |
|
#2 |
Senior Member
xrs333
Join Date: Aug 2010
Posts: 125
Rep Power: 16 |
Use text command, here is a demo:
/define/materials/change-create aluminum steel ;; yes constant 8030 ;; Density yes piecewise-linear 8 300 505 900 585 1500 450 1600 690 1620 750 1621 3e4 1622 6e4 1623 9e4 ;; Cp yes piecewise-linear 8 300 15 900 20 1500 30 1600 31 1620 32 1621 33 1622 34 1623 35 ;; Thermal_Conductivity no ;; Overwrite? Edit the command in a text-editor, copy these lines and paste them in the console of FLUENT, or run as a journal. |
|
February 7, 2012, 08:22 |
|
#3 |
New Member
Yogesh Patil
Join Date: Nov 2009
Posts: 20
Rep Power: 16 |
Thanks. It works
|
|
February 23, 2012, 22:13 |
How to set a material(eg. aluminum or steel) to my gambit model in fluent?
|
#4 |
New Member
subbu
Join Date: Feb 2012
Posts: 1
Rep Power: 0 |
I m from electrical background and i m new to this.. I hav created my wind turbine model in gambit and now i need two things to be done in it
1. to set aluminum as the material for one portion and remaining portion as steel. 2. want to simulate the model only for half rotation (180 degrees and not 360 degrees) in fluent Anybody please help me out in this.. Thanks & Regards, Subbu |
|
March 31, 2020, 02:08 |
Journal file
|
#5 |
New Member
Lee Jo
Join Date: Mar 2020
Posts: 29
Rep Power: 6 |
Hi... I made a journal file to input conductivity and viscosity of fluid containing piecewise linear with 350 points...will this work...I read the files but when I tried to view it showed some warnings in console...how to confirm that my data is entered properly.. |
|
March 31, 2020, 03:52 |
Piecewise Linear
|
#6 |
Senior Member
|
Number of pieces is limited to 30 for piecewise linear properties. You have to use UDF for this.
__________________
Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority. |
|
April 2, 2020, 06:12 |
|
#7 | |
Member
Join Date: Mar 2017
Posts: 61
Rep Power: 9 |
Hi,
Can you write also in ".scm" file format as in fluent database? I can write polynomial piecewise and had no problem however when I wrote piecewise linear material I got an error. Thank you. Quote:
|
||
April 6, 2020, 05:22 |
Material Property as Piecewise Linear
|
#8 |
Senior Member
|
Scheme is just a language used by Fluent's cortex, i.e., its graphical interface. It does not mean that you can use it for something that Fluent does not allow. If the limit is 50 then it is 50. You cannot use scheme to include more than 50 pieces.
__________________
Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority. |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
How to write UDF programme inside FLUENT? | coolyihao | Fluent UDF and Scheme Programming | 9 | June 5, 2016 21:08 |
Fluent jobs through pbs | ibnkureshi | FLUENT | 5 | June 9, 2011 13:43 |
how to write a 3D linear temperature of UDF | venus | FLUENT | 1 | October 28, 2008 02:46 |
fluent -g does not write and print monitors | Volker Pawlik | FLUENT | 7 | December 7, 2005 06:19 |
Where can I write my C program "UDF" in Fluent | Chimwemwe Banda | FLUENT | 2 | December 8, 2004 09:07 |