Air Assist Nozzle for Laser Cutter
I solved the problem with burn marks on Klarart‘s laser cutter. Here is the blog post about details. At the end, I mentioned that the air assist nozzle might not…
Tag: CFD
OpenFOAM and DAKOTA: a Complete Guide
Running a single CFD simulation rarely provides enough information to find a good hydraulic or aerodynamic design of a component. In many cases the poor engineer has to wrestle an…
A Parametric CFD Model: Wind Turbine from Pipes
I’m building a wind turbine and as you might imagine, the blades are Ye Royale Paine In Me Buttocks. Too big for a CNC, too exposed for a 3D print,…
RunFunctions: a Quick Cheatsheet
All OpenFOAM tutorials have Allrun and Allclean scripts which call some mysterious RunFunctions from even more mysterious sources. The most mysterious thing of all this is how poorly those are…
Classy Classes for blockMesh
IMPORTANT! classy_blocks have been massively improved but this article hasn’t. Please refer to readme in repository for most up-to-date information and examples. blockMesh: pros and cons blockMesh is a great…
Tesla Cybertruck Aerodynamics
I am not going to share my negative opinion on visual aspects of design of this vehicle (although I could be very verbose) but there are some technical issues I…
SALOME for multiregion meshing
Context If you’re creating a multiregion mesh and you found this article you probably already know what SALOME , OpenFOAM, snappyHexMesh and chtMultiRegionFoam mean. In case you dont’ here’s a…
Truck Aerodynamics
Practical Background Our intuition will tell us that sharp or rounded objects will cause less drag when moving through fluid. Slightly less intuitive is the fact that changing the rear…
OpenFOAM and DAKOTA: a Complete Guide
Running a single CFD simulation rarely provides enough information to find a good hydraulic or aerodynamic design of a component. In many cases the poor engineer has to wrestle an…
A Parametric CFD Model: Wind Turbine from Pipes
I’m building a wind turbine and as you might imagine, the blades are Ye Royale Paine In Me Buttocks. Too big for a CNC, too exposed for a 3D print,…
RunFunctions: a Quick Cheatsheet
All OpenFOAM tutorials have Allrun and Allclean scripts which call some mysterious RunFunctions from even more mysterious sources. The most mysterious thing of all this is how poorly those are…
Classy Classes for blockMesh
IMPORTANT! classy_blocks have been massively improved but this article hasn’t. Please refer to readme in repository for most up-to-date information and examples. blockMesh: pros and cons blockMesh is a great…
Tesla Cybertruck Aerodynamics
I am not going to share my negative opinion on visual aspects of design of this vehicle (although I could be very verbose) but there are some technical issues I…
SALOME for multiregion meshing
Context If you’re creating a multiregion mesh and you found this article you probably already know what SALOME , OpenFOAM, snappyHexMesh and chtMultiRegionFoam mean. In case you dont’ here’s a…
Truck Aerodynamics
Practical Background Our intuition will tell us that sharp or rounded objects will cause less drag when moving through fluid. Slightly less intuitive is the fact that changing the rear…