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Viscoelastic Fluid Flows using OpenFOAM The solver viscoelasticFluidFoam

Posted May 12, 2017 at 12:49 by kindle

More about the solver

there is someone asking "does this solver work with K-Epsilon? in other words can I solve a turbulent viscoelastic flow by the means of this solver?"

Quote:
Originally Posted by jovani View Post
Hello Foamers,

My name is Jovani and I want announce that will soon be available a solver for treatment of viscoelastic fluid in OpenFOAM. I was working in the development of a viscoelasticFluidFoam solver (with the great orientation of the Dr. Hrvoje Jasak, thank you very much
...
New Member
Posted in Solver
Views 61 Comments 0 kindle is offline Edit Tags
Old

access field in BC condition

Posted May 11, 2017 at 09:26 by kindle
Updated June 7, 2017 at 12:13 by kindle

Two other links may be interesting

https://www.cfd-online.com/Forums/op...time-step.html

https://www.cfd-online.com/Forums/op...ct-scalar.html

Quote:
Originally Posted by alberto View Post
How can a field defined in the solver code be accessed from within the code of a boundary condition?

As explained here http://www.cfd-online.com/OpenFOAM_D...tml?1133622442, I'm
...
New Member
Posted in programming
Views 61 Comments 0 kindle is offline Edit Tags
Old

Updating Boundary Conditions Each Iteration

Posted May 11, 2017 at 09:03 by kindle
Updated June 7, 2017 at 12:13 by kindle

One post downstairs took his "fixed Gradient" to do the update at every time step. But how do I access to the U field of time step before?

Quote:
Originally Posted by thomas99 View Post
Hello All,

I have a situation where I would like to calculate some boundary conditions from the internal field. The problem is that, for each time step, the boundary conditions should be iteratively updated as part of the solution. I have searched the forum and noticed that many people have recommended the groovyBC or swak4Foam
...
New Member
Posted in programming
Views 42 Comments 0 kindle is offline Edit Tags
Old

Plot over line without interpolation

Posted May 10, 2017 at 12:49 by kindle
Updated May 10, 2017 at 13:19 by kindle (cannot find "Use Data Array" for plotting with coordinates value in some version of paraview)

Follow the steps as the following post :
1. Create two "Slice"
2. "Plot Data"
3. In tab Display choose "Cell Data" (when using "plot over line", should you choose this option from defaut "Point Data", the lines will disppear). Here you can choose between "Cell Data" and "Point Data". The former will give more sharp curves as the latter does have some interpolation.

Well, after this post. There is...
New Member
Posted in Post-processing
Views 36 Comments 0 kindle is offline Edit Tags
Old

Binary gives significant performance advantage (Mesh & Solve)

Posted April 28, 2017 at 05:08 by kindle

Well, binary or ascii. Haha

Quote:
Originally Posted by wyldckat View Post
Greetings to all!

OK, only after 6 months did I manage to find enough time to run some tests of my own on a stable machine (mine isn't as stable ).
The results are now available here: https://github.com/wyldckat/wyldckat...nce_Analysis_2

The summary results:
  1. If no file is written, it doesn't matter if it's configured to write in "binary" or "ascii".
  2. Example
...
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Posted in Pre-processing
Views 994 Comments 0 kindle is offline Edit Tags

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