CFD Online Discussion Forums

solids4Foam + sixDoFRigidBodyDisplaceme nt

Posted March 8, 2020 at 17:43 by Michael@UW

Quote:

Originally Posted by bigphil

D is the total displacement
DD is the increment of displacement i.e. DD = D - D_0
D_0 is the old-time total displacement
U is the velocity
pointD is D interpolated (in the solver) to the mesh points: this interpolation is a but more accurate than the interpolation by ParaView
similarly pointDD is the point version of DD

So when using "warp by vector", use D or pointD fields (D will be interpolated to the points by ParaView so it should be almost the same as

...

Michael@UW

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Understanding CFD, Turbulence, turbo-machinery and combustion

Posted March 6, 2020 at 04:32 by pachputesharad

1) CFD Basics for Beginners:

http://turbulencecombustioncfd.blogs...-modeling.html

2) CFD of Turbo-machinery:
http://turbulencecombustioncfd.blogs...erimental.html

3) Combustion Basic for Beginners:

http://turbulencecombustioncfd.blogs...-beginner.html

pachputesharad

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Physical Aspects of Lagrangian Particle Tracking (DPM)

Posted March 1, 2020 at 05:41 by vinerm

Tags dpm, lagrangian, lpt

This blog is first of the two part blog related to DPM Modeling. It is not to be considered as a professional document. Nor is it meant for those who consider themselves to be expert in DPM. It is meant as a guide for the beginners who want to understand various aspects related to DPM Modeling. Though terminology is meant to be general but it is rather closer to the one used in Fluent. Of course, experts are also welcome to go through it and share their comments.

Assume that there...

vinerm

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Quick notes on testing optimization flags with OpenFOAM et al

Posted January 20, 2020 at 18:45 by wyldckat

Greetings to all!

Tobi sent me an email earlier today related to this and I might as well leave a public note as well, to share with everyone the suggestions I had... so this is a quick copy-paste-adapt for future reference, until I or anyone else bothers with writing this at openfoamwiki.net

I have no idea yet for the current generation of Ryzen CPUs (Ryzen 3000 series), but I do know of this report for EPYC: http://www.prace-ri.eu/best-practice-guide-amd-epyc
If...

wyldckat

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Posted in Compiling, building, hacking...

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Mixing of Ammoniak and Exhaust

Posted August 16, 2019 at 10:00 by pconen

Dear Foamers,

in my thesis I worked with static mixers.
If you like to see my case you can see it here.
https://www.dropbox.com/sh/5rndjj0qs...Wci0dlNqa?dl=0
Feel free to ask!

pconen

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