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LRR(Launder-Reece-Rodi RSTM) turbulent model

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Old   November 27, 2013, 08:48
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B T KANNAN
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Quote:
Originally Posted by skeptik View Post
As i know, it's a common problem of the RSM-models.
But, possibly, bad convergence and non-physically solutions were reasoned by wrong boundary conditions. What is your case? Can you publish it?
Dear Skeptik,
Any success in axisymmetric jet case using LRR ?
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Old   November 28, 2013, 01:53
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Ilya
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Originally Posted by skyinventorbt View Post
Dear Skeptik,
Any success in axisymmetric jet case using LRR ?
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Really, i haven't understood your case.
But i have something to say about case settings.

1. You chose steady-state simulation. Do you know that in this case you get only rough solution?

try pisoFoam.

2. You should play with fvSchemes. Higher-order schemes are preferred, but you should balance in numerical stability and numerical scheme.
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Old   December 2, 2013, 09:22
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B T KANNAN
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Quote:
Originally Posted by skeptik View Post
Really, i haven't understood your case.
But i have something to say about case settings.

1. You chose steady-state simulation. Do you know that in this case you get only rough solution?

try pisoFoam.

2. You should play with fvSchemes. Higher-order schemes are preferred, but you should balance in numerical stability and numerical scheme.
All I need is just a rough solution i.e. averaged values using steady state RANS LLR
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Old   August 6, 2014, 03:51
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Hello friends

I want to implement LLR model in OpenFOAM for micro-jet extracting device . It is asking

me to write R file.I have written that file. After that when I run the code parallaly It produce

floating point error in decomposePardict.

I am attaching you both log file and R file in zip format

Regards
harshawardha
Attached Files
File Type: zip micro_jet_1.zip (1.8 KB, 6 views)
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