CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums

Blog Entries

Register Blogs Members List Search Today's Posts Mark Forums Read

Old

OpenFOAM tips and tricks

Posted March 16, 2021 at 01:44 by sphani4391

I am sharing a few tips and tricks for better OpenFOAM simulations. These are not any new tips I discovered. These are just some which I felt most useful based on my experience.

1. Mesh is the most important aspect - I have spent countless hours fixing issues in other places while the real issue was with my mesh. As a thumb rule, make sure the mesh has: no non-orthogonality issues, low aspect ratio cells, no refinement zones in the region with high gradients

2. Always start...
New Member
Posted in Uncategorized
Views 116 Comments 0 sphani4391 is offline Edit Tags
Old

Boundary conditions for multiphase flow

Posted March 16, 2021 at 01:21 by sphani4391

I have struggled a lot with boundary conditions for multiphase flow, particularly where the multiphase spray is impinging on the outlet patch (typically the case of an internal flow simulation of a fuel injector spray). I have finally settled on the following Boundary conditions which work!

Simulation details: I am doing a 2D axisymmetric flow simulation using a wedge BC at front/ back planes. I am using a custom solver based on homogeneous relaxation model. This is similar to cavitatingFoam...
New Member
Posted in Uncategorized
Views 64 Comments 1 sphani4391 is offline Edit Tags
Old
Rating: 2 votes, 5.00 average.

Turbomachinery Solver OpenFOAM

Posted January 13, 2021 at 12:03 by badpuppet
Updated January 15, 2021 at 13:27 by badpuppet

Turbomachinery Solver OpenFOAM


This forum has been a big source of information for me since I started doing CFD. Now, I want to share my work to thank your altruistic knowledge sharing. Regarding the main topic of this blog, I am going to talk about my first turbomachinery simulations with rhoSimpleFoam, the problems I found with this solver and my solution, which I called turboSimpleFoam. Feel free to ask me whatever you want or tell me if something is wrong.

...
Attached Thumbnails
Click image for larger version

Name:	results_Comparation_Turbocharger.png
Views:	131
Size:	41.5 KB
ID:	531  
Attached Images
File Type: jpg mesh_Turbocharger.jpg (72.0 KB, 125 views)
File Type: jpg rhoSimpleFoam_Turbocharger.jpg (25.7 KB, 127 views)
File Type: jpg turboSimpleFoam_Turbocharger.jpg (26.4 KB, 136 views)
Attached Files
File Type: zip turboSimpleFoam.zip (256.2 KB, 69 views)
New Member
Views 430 Comments 0 badpuppet is offline Edit Tags
Old

Energies: special issue on microscale and mesoscale modelling

Posted December 22, 2020 at 06:52 by cperalta

I will be editing this special issue of Energies

https://www.mdpi.com/journal/energie...ale_microscale

Contributions from the CFD community are welcome!
New Member
Posted in Uncategorized
Views 73 Comments 0 cperalta is offline Edit Tags
Old

Panel Method

Posted December 16, 2020 at 15:32 by prachi
Updated January 15, 2021 at 10:05 by prachi

Panel method for 3D.
Attached Files
File Type: pptx Panel_method.pptx (62.9 KB, 64 views)
File Type: pdf Integral Equation Methods, Lecture 1.pdf (587.5 KB, 80 views)
New Member
Posted in Uncategorized
Views 72 Comments 0 prachi is offline Edit Tags

All times are GMT -4. The time now is 14:26.