icoLagrangianFoam Drag Force Model
I am interested in changing the drag force model used in icoLagrangianFoam. After looking at the source code, and I should state that I am not that familiar with C++ (but I have programmed in C and Fortran), it would appear that all I need to change is the HardBallParticle::updateProperties routine in HardBallParticle.C.
Is this correct? or do I need to make additional changes elsewhere?
Also, what do I need to include in IncompressibleCloud.C so that I have access to the timestep, dt, inside this routine?
Thanks in advance for any advice,
That way you don't have to modify the existing solver but you just write a new DragModel and link it to your solver (same for injection)
As for the locations of your modifications: you're right. Just there
Which time-step do you mean: the fluid time-step or the particle time-step
I will try out the channelParticles example. It looks like it may have much of what I want in it already.
I was after both the fluid time step and the particle time step.
After implementing an alternative drag law (most likely via the approach you suggested (i.e. by linking it in)) I would like to add the ability to store/write where the particles hit the walls. I guess I could do this by setting the elasticity of the collision to 0.
Thanks again (for this and for many of your highly practical additions like groovyBC and simpleFunctionObjects).
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