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Free YouTube Lessons for Applied CFD in Aerodynamics using ANSYS and OpenFOAM

Posted November 9, 2017 at 11:05 by shereez234

I have decided to share in this Group a series of video Lessons I am making for a CFD course in Computational Aerodynamics at De Montfort University, Leicester, UK. The link for the play list is provided below:

https://www.youtube.com/watch?v=ELaJWEaG2pc&list=PLuKBNbwwriKO3RwUrf6s4gf4 sjzLYtBS-

6 Lessons already exists, and with in the next few months (weekly) new videos will be uploaded.
It will consist of
* Geometry Handling Techniques
* Structured...
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Old

write a field in OpenFOAM

Posted October 30, 2017 at 04:01 by kindle

This is a good thread on writing an object


Quote:
Originally Posted by sven82 View Post
hi,

I will write out a variable of my own turb. model,
but its doesn't work.
First of all I define a ScalarField in my Header,

volScalarField hybrid_;

for the next step I edit the code file with a new Object

hybrid_
(
IOobject
(
"hybrid_",
runTime_.timeName(),
...
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I want to use the 'turbulentIn

Posted September 25, 2017 at 13:47 by kindle

BC need to pay atttention

Quote:
Originally Posted by chris1980 View Post
I want to use the 'turbulentInlet' boundary condition. As far as I can see the use only inputs a fluctuation scale but what about the integral length scale or other appropiate scales because the flucation scale alone do not define a turublent inlet.

Ok I know it is anyway no real turbulent inlet because there is no turbulence strcuture etc.

Additionally, I was wondering what I have to set for k and epsilon at this turbulent boundary
...
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Utilities: post average turbulence fields and create turbulence fields for LES

Posted September 25, 2017 at 13:45 by kindle

This seems to be useful

Quote:
Originally Posted by Hanzo View Post
Hi everybody,

I found the following issues in OpenFOAM concerning some turbulence analysis:

- the utility createTurbulenceFields only works for RAS computations
- there is no standard utility to average fields after computation has been done (to get U-mean, U-rms, R-Mean, Reff-Mean ...)

So I worked on these utilities and after mentioning it in some posts I got replies and private messages asking me if I could publish
...
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Inlet velocity profile for turbulent pipe flow using swak4Foam

Posted September 14, 2017 at 06:29 by kindle

This is for the outer layer PowerLaw

Quote:
Originally Posted by zordiack View Post
Hi, I wanted a fully developed inlet velocity profile for my 3D-case and I decided to implement it using swak4Foam since I couldn't figure out how to do it with native OpenFOAM tools. So, I thought I'd share my solution here since it took me a while to figure it out.

Please note that in my case the inlet pipe centerline run along the y-axis, but it should by easy enough to modify for other cases too. Turbulent velocity profile is calculated
...
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