[hamsadhwani8]

Hello,

I am new to openFoam and want to set up a case to study the deformation of a single droplet. Can someone help with this?

Thanks,
ss

[msrinath80]

Start by learning how to use the interFoam solver. Refer to the "Dam break" tutorial for a quick start guide on this.

[hamsadhwani8]

Hi Srinath,

THanks for your message. I have been able to run the tutorials on damBreak. Now, I am trying to set up the fluid as a droplet in the same domain. someone in one of these threads has suggested using the following piece of code. However, I am not sure where exactly they want me to put this code! Any suggestions?
-----------------
scalar xC(0.0), yC(0.0); // Center values of for the cross section.

forAll(gamma,gI)
{
if (sqr(mesh.C()[gI].component(0) - xC) + sqr(mesh.C()[gI].component(1) - yC) <= sqr(radius))
{
gamma[gI] = 1;
}
}
--------------

[hamsadhwani8]

Also, just so you know, I use openfoam version 1.5 so I think funkySetFields need not be installed?

Thanks,
ss

[msrinath80]

Everything you need to know is here[1]. Please search the forum carefully before posting. Thank Bernhard for both the utility and providing a simple expression for creating a fluid sphere.

PS: I doubt that funkySetfields is available with the stock OF 1.5 (from OpenCFD). That post has instructions on how to pull it out from OF 1.5.x (dev).

Good Luck!

References:

[1] http://www.cfd-online.com/OpenFOAM_D...ges/1/368.html

[jaswi]

Hi s s

With the release of 1.5 version a new topoSetSource is available. What you want to do requires no coding. please use sphereToCell for your purpose. FSF is a tool which allows the complete freedom to go for general shapes, offcourse if you know the mathematical expression

Look into tutorials/lesCompressibleInterFoam/
and there is a test case which initialzes a bubble using this topoSetSource.

Also I request you to please use your real name and activate your email otherwise posting on the forum gives a feeling of yahoo chat rooms :-)

Kind Regards
Jaswi

[msrinath80]

Hello Jaswinder, Thanks for that pointer.

[hamsadhwani8]

Srinath and Jaswinder,

Thanks for your comments.

ss