CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   OpenFOAM (http://www.cfd-online.com/Forums/openfoam/)
-   -   openfoam queries (http://www.cfd-online.com/Forums/openfoam/107433-openfoam-queries.html)

mrk September 26, 2012 10:49

openfoam queries
 
Dear friends,
This is my first post in open foam, i am interesting to learn open foam, i know commercial software Ansys, and how open foam is useful when compared to Ansys software, when it is really worthy to learn OF, because its hard to find user guide, only basic is there, please give me your suggestions. i am doing M tech in aerospace Eng.

mrk September 27, 2012 06:29

open foam quries
 
dear friends,
i am interesting doing flapping wing analysis using open foam, for that i consider points on the model and extract the xyz coordinates of my model,the file format is in .csa file. For pre processing how i will start, how i import the coordinates, please guide me

chegdan September 27, 2012 06:45

Welcome!

You might want to check out some of the previous posts on the subject
http://www.cfd-online.com/Forums/ope...-new-user.html

is a good place to start. Also, if you have funding or are willing to pay out of your own pocket, you can go to the workshop and attend the training sessions. You can also try to attend the summer school that is offered every year http://www.cfd-online.com/Forums/ope...ol-2012-a.html

The best advise is to just get in there and get using OpenFOAM. There are plenty of cases and tutorials to get started; the forum is full of information on best practices; and there are plenty of people to answer questions and discuss the topic if you are patient. Good luck.

mrk September 28, 2012 03:00

open foam
 
thanks chegdan, for your kind response, i learn how to import cad stl format in OF by seeing discussion on OF, but i dont know how i import xyz coordinates of my model , my model is not cad diagram, i have only xyz coordinates, i don't want to import in any cad software, and get model, because here flapping wing is flexible,twisting, because of that i mark the points on the model( i consider 20 points on my model by florescent ink) and extract the xyz coordinates of the my model, please help me

elvis September 28, 2012 03:58

Hi,

For flexible flapping wing I would advice you to read the PHD-Thesis from Frank Bos
Moving and deforming meshes for flapping flight at low Reynolds numbers


RBF is now included in OF1.6-extend, do not search for RBF in OF2.1.x or OF2.0.x it is not included there.

For pointdata in x,y,z
http://vtk.org/gitweb?p=VTKData.git;a=blob;f=Baseline/Imaging/reconstructSurface.png
you could use
http://www.vtk.org/doc/release/5.10/...ionFilter.html
modify the python example
http://vtk.org/gitweb?p=VTK.git;a=bl...ructSurface.py
to create a STL-file or OBJ-file or so,
but maybe a better solution is to work with based on blender => SwiftBlock

mrk September 28, 2012 08:03

open foam quries
 
thanks elvis, for your kind help, i am using OF 2.1, i dont know blender and python, its necessary for my project? Early i work on ansys for my flapping project, before i change to OF2.1

I think OF-1.5-dev and OF 1.6 extend is same(ie extend version of OF-1.5-dev) how i install OF 1.6 extend? please give me link for that

by MARK

elvis September 30, 2012 02:16

Hi

you will find installation guide for various distributions

You can have more than one OF installation side by side if you manage your .bashrc right.

And no you do not need blender or python, although there is some interesting python stuff that is usually worth to have a look => groovyBC
swak4Foam funkySetFields
pythonFlu

mrk October 1, 2012 05:21

thanks elvis, links are really useful for me, i install OF 1.6 ext

if u don't mind, u please explain me with simple example of these three, sorry for this, i can't understand properly
1.groovyBC
2.swak4Foam

3.funkySetFields

elvis October 1, 2012 10:06

Hi,

just wanted to mention useful tools that give you first class access to non-uniform initial-conditions, s. th. that can be tricky the usual way with standard tools.

mrk October 3, 2012 03:56

thanks a lot elvis


All times are GMT -4. The time now is 04:46.