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January 28, 2010, 03:11 |
Open Foam /Setfields
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#1 |
Member
Mohammad Zakerzadeh
Join Date: Dec 2009
Location: Aachen, Germany
Posts: 40
Rep Power: 16 |
Hi!
I want to use VOF solver and need to set the field in an exact manner. for example set in a circular region or other more complicated shapes. Can anyone help me? |
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January 28, 2010, 14:51 |
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#2 | |
Assistant Moderator
Bernhard Gschaider
Join Date: Mar 2009
Posts: 4,225
Rep Power: 51 |
Quote:
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January 28, 2010, 15:43 |
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#3 |
Member
Mohammad Zakerzadeh
Join Date: Dec 2009
Location: Aachen, Germany
Posts: 40
Rep Power: 16 |
Thanks alot but can my reason satisfied simpler for example is there a substitution for ?Box to cell" in the Foam?
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March 22, 2012, 07:09 |
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#4 |
New Member
muhammad El-nashash'ee
Join Date: Aug 2011
Posts: 4
Rep Power: 15 |
there is a list for available types
Valid topoSetSource types : 39 ( boundaryToFace boxToCell boxToFace boxToPoint cellToCell cellToFace cellToPoint cylinderAnnulusToCell cylinderToCell faceToCell faceToFace faceToPoint faceZoneToCell faceZoneToFaceZone fieldToCell labelToCell labelToFace labelToPoint nbrToCell nearestToCell nearestToPoint normalToFace patchToFace pointToCell pointToFace pointToPoint regionToCell rotatedBoxToCell setToCellZone setToFaceZone setToPointZone setsToFaceZone shapeToCell sphereToCell surfaceToCell surfaceToPoint zoneToCell zoneToFace zoneToPoint ) |
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November 27, 2012, 10:12 |
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#5 |
Member
Join Date: May 2012
Posts: 55
Rep Power: 15 |
Two examples of selecting specific region & faces(setFieldsDict):
regions ( /*cylinderToCell { p1 (0 0 -0.025); //Min p2 (0 0 0.05); //Max radius 0.098; fieldValues ( volScalarFieldValue alpha1 1 ); }*/ patchToFace { name sym1; fieldValues ( volScalarFieldValue alpha1 1 ); } ); |
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January 7, 2013, 11:02 |
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#6 |
Super Moderator
Tobias Holzmann
Join Date: Oct 2010
Location: Bad Wörishofen
Posts: 2,711
Blog Entries: 6
Rep Power: 52 |
Hi all,
is it possible to set the cell values of alpha1 (i.e) to 1 in a given STL file? Therefor I want to use the "surfaceToCell" method. Is that method for that ? Thanks tobi |
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October 7, 2015, 06:08 |
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#7 | |
Member
sandy
Join Date: Mar 2013
Location: Cardiff, UK
Posts: 74
Rep Power: 13 |
Quote:
I am looking for the same thing you asked about.. did you find the answer for this question? can we import STL under a certain name and give it liquid properties and how to do the setting in setFields? if this possible.. do we need any extra dictionary to define? Thanks in advance, Sandy13, |
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November 19, 2015, 15:12 |
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#8 |
New Member
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Hi Sandy,
I used this code as a setSet batch of commands, to define a porous region inside a tunnel: Code:
pointSet tempSet new surfaceToPoint "./constant/triSurface/vehicles.stl" 0.1 true false cellSet vehiclesSet new pointToCell tempSet any pointSet tempSet remove cellZoneSet vehiclesZone new setToCellZone vehiclesSet Happy FOAMing! |
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March 10, 2016, 15:26 |
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#9 | |
New Member
Alpha Beta
Join Date: Mar 2016
Posts: 28
Rep Power: 10 |
Quote:
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April 20, 2016, 08:20 |
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#10 |
New Member
Daniel Duque
Join Date: Jan 2011
Location: ETSIN, Madrid
Posts: 28
Rep Power: 15 |
It's easy to get this sort of output, simply type some impossible name on setFieldsDict (instead of, say, "boxToCell", type "which" or anything), and you will get this list. It works in all sorts of places, it's a convenient way to get the options of some parameter.
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August 28, 2016, 13:21 |
multiple regions
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#11 |
New Member
Marco Grippa
Join Date: Aug 2016
Posts: 3
Rep Power: 10 |
Similar question: is it possible to set multiple regions? I typed 2 cylinderToCell, 1 boxToCell and 1 boxToFace but not all are highlighted when I check in paraView.
How come? Thanks a lot in advance |
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February 14, 2017, 12:30 |
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#12 |
Member
Sebastian Trunk
Join Date: Mar 2015
Location: Erlangen, Germany
Posts: 60
Rep Power: 11 |
Hello everybody,
I found this thread while I was searching for my question on how to assign the field values permanently...? Lets say like a BC! I want to do some tracer simulations with scalarTransportFoam. Since my interesting region starts away from the inlet, I would loose a lot of time by calculating the flow to the interesting region... I had a solution by adding a forAll loop in the scalarTransportFoam solver where I select all cells at a given z-position and set their value to 1. Worked fine on one core, but when I moved to the cluster and parallel run, things do not work as they should. Thanks for your help. Best regards, Sebastian |
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January 2, 2018, 07:21 |
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#13 |
Member
Emad Tandis
Join Date: Sep 2010
Posts: 77
Rep Power: 16 |
Hello everyone
I just saw this thread I want to implement an algorithm in which there is a need to define some volField and surfaceField on a mesh with different zones, e.g. viscosity on cellZones and flux on faceZones that have different values at different zones. These fields also need to be updated through solution. I want to do this in my code rather than topoSet or setSet utilities. in a nutshell, I am wondering if there is any way to define a field which has different values at different zones Any help will be appreciated |
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January 2, 2018, 08:22 |
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#14 | |
Assistant Moderator
Bernhard Gschaider
Join Date: Mar 2009
Posts: 4,225
Rep Power: 51 |
Quote:
__________________
Note: I don't use "Friend"-feature on this forum out of principle. Ah. And by the way: I'm not on Facebook either. So don't be offended if I don't accept your invitation/friend request |
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January 18, 2018, 10:05 |
Setfield for Semi-circular-cylindrical region
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#15 |
Member
Shafik Walakaka
Join Date: Oct 2017
Posts: 38
Rep Power: 9 |
Hi guys!
I am trying to run a two-phase flow of air-water. The system initializes the cylinder as completely containing air. I am have having difficulty trying to setField half of my cylinder to contain water. Could anyone assist me in this matter please? Kind regards Shafik |
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January 18, 2018, 23:32 |
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#16 | |
Senior Member
Taher Chegini
Join Date: Nov 2014
Location: Houston, Texas
Posts: 125
Rep Power: 13 |
Quote:
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April 15, 2019, 08:23 |
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#17 | |
Member
Join Date: Apr 2018
Location: UK
Posts: 78
Rep Power: 8 |
Quote:
I want to try something similar but I am using OF version 5 and it seems that swak4Foam is not supported with this version. Any alternative suggestions/ideas on how this can be done? Specifically, I am simulating bubble oscillations and want to implement a smoothing function on alpha1 to eliminate parasitic currents at the interface... Thanks! |
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April 15, 2019, 08:47 |
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#18 | |
Assistant Moderator
Bernhard Gschaider
Join Date: Mar 2009
Posts: 4,225
Rep Power: 51 |
Quote:
Version 0.4.2 from December supports 5.0 (in addition to v6, 1806 and 1812). Seems that I didn't advertise it too aggressively at the time
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Note: I don't use "Friend"-feature on this forum out of principle. Ah. And by the way: I'm not on Facebook either. So don't be offended if I don't accept your invitation/friend request |
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April 17, 2019, 06:09 |
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#19 |
Member
Join Date: Apr 2018
Location: UK
Posts: 78
Rep Power: 8 |
That's great! Last time I checked was November to it was not available at the time..good to hear it is now supported also in the newer OF versions, thanks for this
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April 17, 2019, 10:45 |
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#20 | |
Assistant Moderator
Bernhard Gschaider
Join Date: Mar 2009
Posts: 4,225
Rep Power: 51 |
Quote:
Usually the development-branch of the repository supports new OF versions a couple of weeks after their release (ESI-releases usually when they are released as ESI supplies me with patches for swak before the release) I only do releases rarely because they have to be tested against the different distros. But I plan to do them more often (based on the ESI-release cycle as that is the distro I currently use most and they have a release schedule that allows me to plan)
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Note: I don't use "Friend"-feature on this forum out of principle. Ah. And by the way: I'm not on Facebook either. So don't be offended if I don't accept your invitation/friend request |
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Tags |
openfoam, setfields, vof |
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