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Lubos Pirkl

  • Czech Republic
  • Since 2022
CFD, OpenFOAM, ...
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ANSYS Fluent NACA 4412 at Re = 50,000, AoA = 10° – Large CL Differences Between Transition Models and Boundary Conditions

Hi all,

I am working on a final-year CFD project and have been stuck on this for 2 months with no luck investigating a NACA 4412 airfoil at Re = 50,000 and AoA = 10° in ANSYS Fluent 2025 R2. I am trying to reproduce low-Re experimental data before moving on to vortex-generator simulations, but I am getting very different lift predictions depending on the transition model and boundary...

FEA + FSI
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No grid needed, simulation in seconds.

No grid needed, predictions in seconds. Jiying 2.0-s is now live, predicting displacement, strain, and stress for 3D linear elastic problems. Visit jiying.io to try it online

FEA + FSI
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JIYING 2.0-s Officially Launched | Let Machines Understand Physics

From handwritten equations to modern supercomputers, we continue to explore how computation can help us understand the physical world.

CFD, OpenFOAM, ...
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Ahmed Body OpenFOAM case download

Hi everyone,

Lubos suggested by email that I post my request here.

I’m currently working on RANS turbulence modeling, and I’d like to use the Ahmed Body case from CFD SUPPORT as one of my validation cases.

I found the Ahmed Body benchmark page and the old OpenFOAM tutorial page, but I couldn’t find a working download link for the case anymore.

I’m mainly looking for the...

General Discussion
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Email notifications are being redesigned ASAP

Please be advised that our email notification system is currently undergoing a complete redesign to improve reliability and integration with the new TBRAIN architecture. We are working to ensure that automated updates and alerts are fully functional ASAP. Thank you for your patience as we...

CFD, OpenFOAM, ...
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swak4Foam

Hi,

I installed OF4Win-20.09v2-win64.exe on my Windows PC. I am interested in using swak4Foam to set specific boundary conditions in my case. Do I need to compile it or what would be the necessary steps?

CFD, OpenFOAM, ...
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Error at parallel simulation

Hi, I'm a newbie to OpenFoam and I was trying to do the tutorials, I've been doing great but then I got to the motorbike one and tried to run in parallel the meshing and simulation but didn't work.

As you can see I set my meshing for parallel and gives me errors no matter if I use mpirun or mpiexec (I used both of them because I saw in other forums one of those should work), however if I...

CFD, OpenFOAM, ...
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ACOUSTIC-BENCHMARK-PROPELLER-DJI9450 CAD MODEL

Hello sir

i had gone through your webinars and various papers. recently i had read your published information regarding <TCAE-CFDSUPPORT-ACOUSTIC-BENCHMARK-PROPELLER-DJI9450> . I want to try simulation on same propeller can you please provide me cad model for dji9450 propeller that you had used in Ur simulation.

 THANK YOU

TCAE Tech Support
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Residual window

Hello CFDSupport Team,


I am experiancing a slight problem in Paraview during simulation. Window where residuals shall be seen is a bit strange. Is this some kind of a driver problem? Do you might give me any hint where to look?

CFD, OpenFOAM, ...
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rhoSimpleFoam convergence

Have you got any advice or sample files (fvSolution, fvSchemes) for getting rhoSimpleFoam to converge please?


I'm running an aircraft case at Mach 2.0, using rhoSimpleFoam, with freestream BC in the far-field.

The whole solution become...

CFD, OpenFOAM, ...
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Unable to install and configure Openfoam-9 on RHEL-8

Hi Team,


Recently I am trying to install and configure Openfoam-9 source file on RHEL operating system. But I could not able to install it successfully. So I need your support to install this OpenFoam-9 on RHEL operating system. It is very urgent, so please if it possible to schedule a Zoom or WebEx meeting to fix this issue.


I have already installed these belo...

CFD, OpenFOAM, ...
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Kaplan Turbine CFD, FEA, FSI, and Optimization


Kaplan Turbine CFD, FEA, FSI, and Optimization


CFD (Computational Fluid Dynamics), FEA (Finite Element Analysis), and FSI (Fluid-Structure Interaction) simulations are powerful tools for analyzing the performance of hydro turb...

CAA - Acoustics
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Turn the acoustic .dat file to an audio file.

Hello! Everyone, 


I was looking at a video about acoustics and there I saw that the virtual microphone data is converted into an audio file which I thought was incredible. Please if anyone knows how this can be done in OpenFOAM or TCAE? 


Thank You


TCAE Tech Support
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ubuntu version

We are currently running ubuntu v18.04 and TCAE version v23.03.  We are now adding a second server node to start building an HPC 2 node cluster.  We are thinking to upgrade ubuntu at this time. Is ubuntu v22.04 supported with TCAE v23.03, or should we stay with ubuntu v20.04 as this is the most current version that is mentioned in the TCAE software manual.



Data/ML/AI
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Is there any convient way to call a tensorflow script while running TCAE solver?

Hi everyone!


I want to call a tensorflow neural network while running TCAE redSolver.


Is there any relevant tutorial available?


Thank you!