Parabolic inlet velocity profile
Hi
I think you can use groovy boundary condition and transform cylindrical cordinate to cartesian. Good luck Ata |
Quote:
i postet a while ago(further up somewhere) a "tool" that should be able to do that. Just download and insert your equation...hope it works.. regards |
setParabolicInlet.C
Hi. Does anyone have setParabolicInlet.C file previously posted? It is not available any more. If anyone can email it to gascortado@gmail.com I will greately appreciate it. Thanks
|
Hi
You would be better off considering the tool swak4foam: http://openfoamwiki.net/index.php/Contrib/swak4Foam Have a nice weekend, Niels |
information in parabolic inlet
Good morning evryone!
I 'm new in OpenFoam ,i want set parabolic inlet.I use the version 1.7.0. my geometry is a canal with attach in a tab.I have read in forom but i don't understand. Please some help me to explain the procedure. I try to english but my language is french. |
Hi
Hi all, can every one tell me how to define U0=1-exp(-y^2) profile at the inlet BCs?
_____ Rasoul |
Quote:
Or you can do it with groovyBC (now part of the swak4Foam-package). You find info about that either inthe Forum or on the Wiki |
Quote:
tanx for your reply, i have not any information about swak4Foam and not have enough time to study it, would you tell me the simplest way to set this BCs at the inlet? (i used OF.1.5-dev) ________ Rasoul |
Quote:
As you're very short on time: http://tinyurl.com/3fklrwd |
Quote:
i successed to set the Bcs that i mentioned in the last posts by using nonuniform BCs. now i wanna to add osscillation to the inlet after reaching to the steady state. i know how to use oscillating bc, but dont know how to set it be continued from previous issue!!!??? on the other hand i wanna set unsteady BCs so that after a special time that the problem reached to the steady state, apply oscillation at the inlet. whoud you tell me how do it?? tanx __________ Rasoul |
can every one tell me how to exert (1-exp(-y^2)+0.5Cos2t) profile at the inlet BCs by groovy BCs?? i did not find any manual for groovyBC so that help me do it, i am very glad if intruduce me any documention a bout it.
_____ Rasoul |
Quote:
(especially points 5&7) |
tnx for your attention, you are right!!!
I've done my work with a combination of two other boundary conditions, without use groovyBC :)) |
Ehhh...there are many examples on the download page of GroovyBC, so it's really a question of *reading* before asking.
|
Quote:
_______ Rasoul |
Hello Håkan
I am going through your tutorial. I am using OpenFoam 2.1. I am a beginner and freshly started learning openFoam. I cannot find parabolicvelocity folder and relevant files in the path. parabolicVelocity/parabolicVelocityFvPatchVectorField.C parabolicVelocity/parabolicVelocityFvPatchVectorField.H Can you please send them at sihaqqi@gmail.com. I shall be very grateful. I have tried to find them on internet but every link is useless. Thanks and Regards |
Quote:
|
Regarding parabolic velocity profile at inlet
Hello!
I am trying to give a parabolic velocity profile at the inlet. I got the default code from Ansys fluent manual, how can I adjust it such as I get a particular velocity at inlet. Initially, I have taken up the code and interpreted and during initialization, I gave the velocity required. Here is the code I used and any suggestions regarding the improvement of the code to get a required velocity?: #include "udf.h" DEFINE_PROFILE(x_velocity,thread,index) { real x[ND_ND]; real y; face_t f; begin_f_loop(f,thread) { F_CENTROID(x,f,thread); y = x[1]; F_PROFILE(f,thread,index) = 20. - y*y/(.0745*.0745)*20.; } end_f_loop(f,thread) } Regards, Shiva |
All times are GMT -4. The time now is 07:14. |