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Here is the scenario: You need the latest OpenFOAM 1.7.x git version, but your Linux machine is stranded on a deserted lab without access to the internet or to any other machine that does have access to the internet. The only machine with internet access that you have access to, is on some other place in the world and on top of that, uses Windows for an operating system. And you think to yourself: "I'm doomed... so very doomed... "
Fear not, because:...

Generating a mesh with a MRF region using snappyHexMesh:



-- using cylinder option (primitive shape available in OF-1.6 and above) and defining it in the geometry sub-dictionary in snappyHexMeshDict

cylinder
{
type searchableCylinder;
point1 (0 0 10);
point2 (0 0 20);
radius 10;
}

Using this as a refinement surface and obtaining the cells inside as a MRF cellZone.

castellatedMeshControls...

Compiled from forum !!!!!!!!!!!!!!

To generate a 2D mesh using snappyHexMesh: Its an indirect way but at times can be helpful. The following steps need to be considered:

1. Generate the snappyHexMesh with empty patches but with more than one cell between them.

2. Using the above mesh as a source extrude one of the empty patch in the normal direction with a single cell. This would result in a mesh with only two or three patches.

3. Using the autoPatch...

Isogeometric Analysis is a relatively new approach proposed by T. J. R. Hughes and his group to combine CAD and finite element analysis. The basic idea is to use the same (finite) representations for the geometry and FEM solution space, mostly based on B-splines and NURBS. The major advantage is the exact representation of geometry in computer aided design and analysis. An excellent introduction is given in the book

Isogeometric Analysis: Toward Integration of CAD and FEA
...

Dear all,
I try to combine tow solvers of OPENFOAM, dieselFoam and nonNewtonianIcoFoam slover for a spray dryer simulation. I need a algorithm to do it. I asked this question from Dr. Ville Anton Vuorinen, and send me this answer:"
In one conversation Niklas Nordin explains how the lagrangian classes match
with other solvers.
Basically the actual steps to create the solver were really easy.
Just including some .H files and adding a spray source term....