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Lubos Pirkl

  • Czech Republic
  • Since 2024
CFD, OpenFOAM, ...
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Cfd simulation of fire and explosion

I need to learn how to model fire and explosion with cfd. Can any one help me?

Data/ML/AI
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AI Agent TBRAIN - version 0.0

Under development ...

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...

TCAE Tech Support
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Ahmed body Drag Coefficient

I am running the Ahmed benchmark case downloaded from cfdsupport, and I get a different drag coefficient compared to what is in the report on the website (experimental value: 0.2850, website value 0.2848, my value 0.305). This is a fairly significant difference. I am using the files exactly as downloaded, in TCAE-Lite version 25.10. What would be the reason for this difference in drag predictio...

CAD - Geometry Generation
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Axial Fan TCAD Geometry Builder in TCAE-Lite

Hello,


I am interested in the Axial Fan TCAD geometry builder mentioned in this example:

CFD, OpenFOAM, ...
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Question Regarding Thrust & Torque Values in DJI 9450 Benchmark Report

Hello everyone,

We are a team of university students currently working on a project to replicate the CFD simulation of the DJI 9450 propeller. First of all, we would like to thank the content creators for the excellent "Acoustic Benchmark Propeller DJI 9450" study. It has been an invaluable resource for our work.

As we try to reproduce the simulation results, we've encountered some...

CFD, OpenFOAM, ...
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Mixing plane interface distorsion

Hi everyone,


I have a question concerning the mixing plane interface method : it seems to me that the method can generate numerical errors when reverse flow occurs on the interface.


To be more specific, I have a radial interface between the outlet of a centrifugal impeller and the inlet of its diffuser. On a specific zone of the interface, reverse flow occurs w...

FEA + FSI
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[Help Needed] Severe Contact Force Oscillations in Thrust Ball Bearing Model (Abaqus Implicit Dynamics)

Hello everyone,

I’m currently working on a thrust ball bearing simulation using Abaqus (implicit dynamics), and I’m encountering significant oscillations in the contact force (CFNM). I’d like to ask for advice on how to reduce or eliminat...

CFD, OpenFOAM, ...
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overmesh with openfoam

is it possible with TCAE to make “overmesh” meshes?

CFD, OpenFOAM, ...
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How do you measure massflow rate through the system

Hi All,


New user here. I've gone through the tutorials and forum but haven't found my answer. Asking the AI chat bot it says I need to do some scripting and change some files, which I don't believe. I feel the answer is more straight forward.


How do I measure the mass flow rate through my system? You can set the units for the report, but my report shows nothing...

TCAE Tech Support
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TCFD repord failed

Hi,

I have a problem with report at the end?

Program made all 3000 iteration ( about 1.200.000 pcs), but at the end is allways problem with the report: (see picture below).

TCAE Tech Support
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NASA HECC Tutorial

I have been trying to run the the NASA HECC tutorial provided by TCAE. The tutorial has a very dense mesh and takes verylong to run and make a speedline. In order to save computation time I tried two methods:

1. I reduced the mesh and ran the simulation for only one point on the speedline (the one with the highest efficiency). 

2. I ran the whole tutorial as is and just skipped...

CFD, OpenFOAM, ...
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TCAE-Lite 25.03 Windows version failure to mesh

Hi,


I'm a new user of TCAE-Lite.

I've setup a pump case and the "check" button says the case has been setup correctly. However it fails to mesh.

The same error occurs when running the f1 tutorial case.


Any advice would be appreciated,


Thanks,

Tom

General Discussion
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List of Open Source Software for Engineers



https://www.cfdsupport.com/cae-open-source-software.html


Each piece of software has its pros and cons. Usage of any of them depends on the particular project needs and many other circumst...

CFD, OpenFOAM, ...
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Request for Adjoint Optismation Case File

I am currently doing an adjoint optisimation study into internal flows into a system.