Given a cylinder of radius $R$ and length $L$, I need to find the number of spheres which is possible to pack into the cylinder as a function of the radius $\rho$ of the spheres. I found something about the problem of packing into cubes or other solids, but nothing in a cylinder. Does someone know the solution? Thanks.
This is what you need. It includes numerical results up to $\rho$/R of about 2.9. http://pre.aps.org/abstract/PRE/v85/i5/e051305