  An ideal atom laser would produce an atomic beam with highly stable flux and
energy. In practice the stability is likely to be limited by technical noise
and nonlinear dynamical effects. We investigate the dynamics of an atom laser
using a comprehensive one dimensional, mean-field numerical model. We fully
model the output beam and experimentally important physics such as three-body
recombination. We find that at high pump rates the latter plays a role in
suppressing the high frequency dynamics, which would otherwise limit the
stability of the output beam.
