I got my hands on a dead automotive Mass Air Flow sensor. Someone had already been curious so I got a disassembled part but I am even more curious because it’s a weird piece and I want to know why. In Ye Olden Days, the MAF sensors were classic hot wires but since cars usually […]
This is the 8th part of the classy_blocks tutorial. If you’re new to this, I recommend to scroll through previous parts first. A classy_blocks Sketch This is a collection of Faces but instead of creating each face manually, you just need to specify a bunch of points and which ones define which Face. Let’s create a
This is the 7th part of the classy_blocks tutorial. It is highly recommended that you read part 6 because we’ll use curves and whatnot. Mesh Quality The Finite Volume Method (FVM) not only requires discretization of geometry into simpler basic elements (called cells) but is also terribly picky about their shape. It can work with anything
This is the 5th part of the classy_blocks tutorial. Its contents are rather advanced-ish so before you dive into it you should really know the basics first. This article is a preparation chapter for the next sort-of-serious tutorial, optimization. But First, a Pep Talk (Which you can easily skip if you’re motivated enough already) Alas, we do not
This is the 5th part of the classy_blocks tutorial. It covers some miscellaneous goodies but you should really know the basics before jumping into the former. Debugging with classy_blocks blockMesh requires everything in your mesh to be perfectly in order to run at all – vertices, blocks, grading, counts, etc. If you miss anything, it
In Part 3 of this classy_blocks tutorial I mentioned that classy_blocks and blockMesh are not CAD software so they can’t produce the same surfaces. In order to obtain the exact form we want, blockMesh offers a very powerful but poorly documented tool: projections. Available Geometry There are two kinds of geometry that OpenFOAM currently understands:
This is the third part of the classy_blocks tutorial. If you’re new to this, you might want to start with part 1. Most real-life geometry cannot possibly be described using just a single block, regardless of how sophistically you create it. That’s why blockMesh is a block-structured mesh generator, meaning you may specify many blocks
This is the second part of the classy_blocks tutorial. If you’re new to this, you might want to start with part 1. Points Just to clear things up, classy_blocks uses the numpy package to do the heavy mathematical lifting. Anytime any classy object requires your input you can pass it a numpy array. In order
