Combustion
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- Location: Germany
Re: Combustion
Dimensions of the body?
Re: Combustion
the setup and geometry is in the case above!
http://www.luft46.com/misc/skp14.html
trying to sim this jet Re: Combustion
Epiphony: Combustion is a bunch of snakes! Who Knew!?
Using "ReactingFoamTutorial" -> https://www.cfd.at/sites/default/files/ ... Eleven.pdf
and "CFD Tutorial 1 - Elbow" from CSIR as guides!
https://raw.githubusercontent.com/opens ... 0Elbow.pdf
and C:\Users\~~~\FreeCAD 0.19\v2012\msys64\home\ofuser\OpenFOAM\OpenFOAM-v2012\tutorials\combustion\reactingFoam\laminar\counterFlowFlame2D
the ignition is accomplished by an input of mixture of N2 and methane superheated to temp of association (800 K)
back to 3D model using OpenFOAM sheets from above example
https://www.cemf.ir/PDFs/OpenFOAM/Sandi ... ngFoam.pdf
the outer ring enters air 294 K
the middle superheated mix at 1880 K (spark plug)
the inner ring methane 294 K.
However ignition by method from Tutorial above!
is there methane in freeCAD???
so now after meshing and writing case
select "edit" option and hack!
Using "ReactingFoamTutorial" -> https://www.cfd.at/sites/default/files/ ... Eleven.pdf
and "CFD Tutorial 1 - Elbow" from CSIR as guides!
https://raw.githubusercontent.com/opens ... 0Elbow.pdf
and C:\Users\~~~\FreeCAD 0.19\v2012\msys64\home\ofuser\OpenFOAM\OpenFOAM-v2012\tutorials\combustion\reactingFoam\laminar\counterFlowFlame2D
the ignition is accomplished by an input of mixture of N2 and methane superheated to temp of association (800 K)
back to 3D model using OpenFOAM sheets from above example
https://www.cemf.ir/PDFs/OpenFOAM/Sandi ... ngFoam.pdf
the outer ring enters air 294 K
the middle superheated mix at 1880 K (spark plug)
the inner ring methane 294 K.
However ignition by method from Tutorial above!
is there methane in freeCAD???
so now after meshing and writing case
select "edit" option and hack!
Re: Combustion
[video]C:\Users\fungnow(avisom.avi)[/video]
wanted to post short video but cannot find how to do it?????
wanted to post short video but cannot find how to do it?????
- adrianinsaval
- Veteran
- Posts: 5553
- Joined: Thu Apr 05, 2018 5:15 pm
Re: Combustion
upload to youtube or some other hosting service then paste the link here and try using the [video] tag, I'm not sure what sites are supported but I think at least youtube is supported. Maximum file size for attachments in the forum is 1.5mb so you won't be able to post a video here directly, if it's short and audio and image quality are not important you can try converting to a gif that has less than 1.5mb and upload that as an attachment
Re: Combustion
The Upload Limit is 1MB.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
Re: Combustion
Thank you much! Youtube it is, in a while!
Re: Combustion
Last edited by Kunda1 on Sun Jan 23, 2022 1:54 am, edited 1 time in total.
Reason: used video tags for clip
Reason: used video tags for clip
Re: Combustion
Code: Select all
testing editing CASE before solving
???? use "Analysis control" "Edit" Case button!
THIS WILL IMPLEMENT "Pulsing Inlet Velocity" (find it on UTb)
inletGas
{
// Fix all three components of velocity on inflow and only the normal component on outflow,
// in order to be well-posed if there are some faces on the patch which are actually outflows.
type fixedNormalInletOutletVelocity;
fixTangentialInflow yes;
normalVelocity
{
type uniformFixedValue;
value uniform ( 3.2 0.0 0.0 );
uniformValue sine;
uniformValueCoeffs
{
frequency 2;
amplitude 5;
level (10 0 0);
scale (1 0 0);
}
}
value uniform ( 3.2 0.0 0.0 );
}
Last edited by Kunda1 on Fri Jan 28, 2022 12:23 am, edited 1 time in total.
Reason: added code tags
Reason: added code tags