I'm attempting to simulate the magnetic fields induced an array of neodymium bar magnets, arranged in parallel lines, configured like jail bars at varying distances apart. Specifically, I seek to find the magnetic flux density at points around and between these magnets.

I am having trouble understanding the electromagnetic side of Abaqus. I've managed to model the individual component magnets, and input their permeability, but I dont understand the step I would need to use. I'm also aware that these simulations tend to involve modifying an "input file", but I don't entirely know how to, or what to modify within it.

Where can I look to for material/information relevant to the system I plan to model?