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Check my Tie Drag work

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Numsgil:
Density and Viscosity is typed in by the user in the Advanced Physics tab.  They're also what are effected by the dropdown menu of "Thin fluid/Transitory/Thick Fluid".

Density is in "mass per cubic twip".  Viscosity is likewise in DB units.  These units can't really be equated to real world units, which is part of your point.  So to answer your question, this is where the filter between the real world and DB occurrs.

I would just let the user set the Reynolds number, but Density is important in other areas, such as Added Mass (the apparent inertia added to a system because you have to move the fluid the object is in) and Bouyancy.

I'll look at your link.  I do remember "GhostScript" from the last time I tried to do this...

Hmm, yeah, that looks familiar all right.

You basically need to install LaTeX, dvips, ImageMagick, and Ghostscript among others.  This is alot of work.

Sprotiel:

--- Quote from: Numsgil ---You basically need to install LaTeX, dvips, ImageMagick, and Ghostscript among others.
--- End quote ---
Well, that's just a basic LaTeX system plus one program to manipulate images. It can't get simpler than that and still be called LaTeX. However, have you seen this link at the bottom of the page? If you can't install anything, it's not a big deal, but it would be useful to be able to type equations.

Numsgil:
Ha!  Thanks, math support is now up.  Don't know for how long since it's using another server to parse the code, but whatever it takes

Sprotiel:
I've finished redoing the calculation - and while your math was right, your physics wasn't. In particular, the way you computed the forces applied to the bots was completely wrong. I've put the correct expressions on the wiki - which BTW, are much simpler in the linear than in the quadratic case.

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