[pela145]

Hello!

I am modelling a steady flow field around a high rise builiding with the standard k-epsilon RANS turbulent model. Now I would like to compare how some different meshes respond to the same inlet conditions. These conditions should be a power law of the atmospheric boundary layer. To implement it, I got a table with several points in the z axis and their correspondant velocities, which have been taken from an actual experiment in a wind tunnel.

I have found out that I can use this data as my inlet conditions by using the utility setDiscreteFields, which some of my reference authors used and also which i have already installed in my computer. However, even though I have looked for some tutorials on this forum and in the wiki of openFoam, I have not found nothing that give the initial idea of knowing how to use it.

That's why I ask now for a parter that can provide me just a bit of the basic information on how to use this utility. The initial steps (which folder creating in my case folder, where to put the setDiscreteFieldsDict file and how to edit it properly,...).

Thanks in advance.

[kmefun]

Hi,

1. prepare your "setDiscreteFieldsDict" and then copy it into system folder.
2. run setDiscreteFields command

Here is an example show you how to set each entry in setDiscreteFieldsDict.

[pela145]

Thank you Kaufman for your reply!

I did what you said. However I have one question about the Dict file.

What does direction refers to? I mean, if you already type x, y, z and Ux, Uy, Uz in profile what further information you provide by saying direction "x y or z".

Pelayo

[pela145]

Dear Kaufman

Anyway, you have completely solved my problem.

Thank you

[kmefun]

The direction is optional entry. More detail can be found in source code (setDiscreteFields.C)

[fhorta]

Anyone know if this utility is was discontinued? I see the svn repo is down, and this version is not compilable anymore for OpenFoam 4. Is there any other solution? I'm trying to run this example for inc turbulence flow, that apparently, it was compiled for of2.x. Thanks!

[me.ouda]

Hi felipe,

I've modified setDiscreteFields utility to work with OpenFOAM 4.0

It may be a little bit late for you, but just in case someone else need it.

Regards.

[fhorta]

Not that late since I JUST got back to this project. Thanks bro!

[kerim]

Hi!
I am going to adjust
simpleFoam Validation in Urban Environment using AIJ guidelines for

openfoam 5. The main problem is setDiscreteFields utility. could someone help to me?

[kerim]

The setDiscreteFieldsDic file is attached. It was copied into case system folder. After running setDiscreteFields command I have faced with problem - setDiscreteFields: command not found.

Any kind of help highly appreciated.