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Search: Posts Made By: nimasam
Forum: OpenFOAM Programming & Development Today, 04:03
Replies: 35
Views: 4,574
Posted By nimasam
yes, i did, it works :)

yes, i did, it works :)
Forum: OpenFOAM Programming & Development Yesterday, 03:15
Replies: 35
Views: 4,574
Posted By nimasam
Dear Abbas look following papers: 1- A...

Dear Abbas

look following papers:
1- A unified single-field model framework for Volume-Of-Fluid
simulations of interfacial species transfer applied to bubbly flows

2-Numerical simulation of...
Forum: OpenFOAM Running, Solving & CFD July 16, 2016, 04:06
Replies: 8
Views: 2,085
Posted By nimasam
may be its late :), however look the this...

may be its late :), however look the this document (https://hal.archives-ouvertes.fr/hal-00841302/document) to set boundary condition
Forum: OpenFOAM Pre-Processing June 23, 2016, 11:59
Replies: 1
Views: 181
Posted By nimasam
convert chemkin file ino format

i download the chemkin file from here (https://combustion.llnl.gov/mechanisms/alkanes/iso-octane-version-3) for iso-octane
but i can not convert it in OpenFOAM format using chemkinToFoam


the...
Forum: OpenFOAM June 23, 2016, 10:40
Replies: 6
Views: 302
Posted By nimasam
use this expression grashof difinition

use this expression grashof difinition
Forum: OpenFOAM June 20, 2016, 00:37
Replies: 6
Views: 302
Posted By nimasam
it depends :) if you want to calculate Re as...

it depends :)

if you want to calculate Re as a post processing procedure. then you should
1-foamCalc mag U
2-open paraview
3- use filter calculator

but also you can add some extra pieces...
Forum: OpenFOAM June 18, 2016, 02:08
Replies: 6
Views: 302
Posted By nimasam
Hi friend in the grashof number, g...

Hi friend

in the grashof number, g represents the value of gravity acceleration, so you can use mag(g) in your code, for Reynold number use the same method for U :)
Forum: OpenFOAM Running, Solving & CFD June 18, 2016, 01:58
Replies: 8
Views: 390
Posted By nimasam
1- change air fvScheme as: gradSchemes { ...

1- change air fvScheme as:

gradSchemes
{
default cellLimited Gauss linear 0.5;
}


2-turn off turbulence, run several iterations in laminar then turn on turbulence
Forum: OpenFOAM Running, Solving & CFD June 16, 2016, 01:46
Replies: 8
Views: 390
Posted By nimasam
would you please share the fvSchemes

would you please share the fvSchemes
Forum: OpenFOAM Pre-Processing June 14, 2016, 03:04
Replies: 10
Views: 4,567
Posted By nimasam
add the whole case file here

add the whole case file here
Forum: OpenFOAM Running, Solving & CFD June 14, 2016, 03:03
Replies: 4
Views: 167
Posted By nimasam
well, as i said before you need programming :) ...

well, as i said before you need programming :)
now you only solve continuity equation and momentum equations which return U and p.
for simulation of pollutant dispersion, you need to solve extra...
Forum: OpenFOAM Running, Solving & CFD June 13, 2016, 03:18
Replies: 4
Views: 167
Posted By nimasam
you should solve a transport equation beside p...

you should solve a transport equation beside p and U to simulate dispersion of pollutant. Therefore you need some programming to add this transport equation to the basic solver that is simpleFoam or...
Forum: OpenFOAM Pre-Processing June 13, 2016, 03:11
Replies: 1
Views: 141
Posted By nimasam
you can use "timeVaryingUniformFixedValue", read...

you can use "timeVaryingUniformFixedValue", read this (http://albertopassalacqua.com/?p=69)
Forum: OpenFOAM Pre-Processing June 13, 2016, 03:04
Replies: 1
Views: 209
Posted By nimasam
As you have two heat generations, you need define...

As you have two heat generations, you need define two source not one
Forum: OpenFOAM Pre-Processing June 13, 2016, 03:01
Replies: 1
Views: 174
Posted By nimasam
look this tutorial: ...

look this tutorial:
tutorials/incompressible/simpleFoam/pitzDailyExptInlet
Forum: OpenFOAM Pre-Processing June 13, 2016, 02:57
Replies: 1
Views: 152
Posted By nimasam
well, you have two options: 1- one patch two...

well, you have two options:
1- one patch two profiles (using groovyBC)
2-create two patches:
for creating two patches, you need to define two blocks. It is impossible to divide one face into two...
Forum: OpenFOAM Pre-Processing June 13, 2016, 02:46
Replies: 2
Views: 167
Posted By nimasam
do you want to use both BC together? it is...

do you want to use both BC together?
it is impossible :)

you maybe want to change source code to consider turbulent flow along ABL condition
Forum: OpenFOAM Pre-Processing June 13, 2016, 02:44
Replies: 2
Views: 179
Posted By nimasam
as much as i know, here the value is place holder...

as much as i know, here the value is place holder and your assigned magnitude is irrelevant.
Forum: OpenFOAM Pre-Processing June 13, 2016, 02:42
Replies: 1
Views: 122
Posted By nimasam
so little information :) i recommand you to read...

so little information :) i recommand you to read this (http://www.cfd-online.com/Forums/openfoam/98988-how-give-enough-info-get-help.html)
Forum: OpenFOAM Pre-Processing June 13, 2016, 02:39
Replies: 10
Views: 4,567
Posted By nimasam
it usually happens when the file misses ) or } or...

it usually happens when the file misses ) or } or ] or ;
check them :)
Forum: OpenFOAM Pre-Processing June 13, 2016, 02:36
Replies: 2
Views: 108
Posted By nimasam
use following command rm -rf 0/*~

use following command

rm -rf 0/*~
Forum: OpenFOAM Meshing & Mesh Conversion March 18, 2016, 04:23
Replies: 3
Views: 309
Posted By nimasam
Dear Ali if you are going to use wall...

Dear Ali

if you are going to use wall function you should be worried about y+ , however it seems you can resolve all boundary layers using the fine grids , so i suggest use y+ around ~1 and not...
Forum: OpenFOAM Announcements from Other Sources March 9, 2016, 06:04
Replies: 1
Views: 228
Posted By nimasam
customized ubuntu14.04LTS

Dear foamer

OpenFOAM3.0.1 is released sometimes ago, meanwhile i see some newbies struggle in installation of OpenFOAM, therefore i customized Ubuntu14.04LTS to include OpenFOAM in it.

you can...
Forum: OpenFOAM Pre-Processing February 5, 2016, 14:38
Replies: 4
Views: 591
Posted By nimasam
the average nusselt number is written in a file...

the average nusselt number is written in a file in the test case folder, you can see the result in excel software or plot it using gnuplot
Forum: OpenFOAM Pre-Processing February 5, 2016, 14:27
Replies: 2
Views: 197
Posted By nimasam
the easiest way is to use salome to decompose...

the easiest way is to use salome to decompose faces and then regroup them as different boundary patch name

you can download salome from here (http://www.salome-platform.org/)
Showing results 1 to 25 of 1186

 
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