  We report the first results of a magnetohydrodynamic (MHD) simulation of the
development of a homologous sequence of three coronal mass ejections (CMEs) and
demonstrate their so-called cannibalistic behavior. These CMEs originate from
the repeated formations and partial eruptions of kink unstable flux ropes as a
result of continued emergence of a twisted flux rope across the lower boundary
into a pre-existing coronal potential arcade field. The simulation shows that a
CME erupting into the open magnetic field created by a preceding CME has a
higher speed. The second of the three successive CMEs simulated is
cannibalistic catching up and merging with the first into a single fast CME
before exiting the domain. All the CMEs including the leading merged CME,
attained speeds of about 1000 km/s as they exit the domain. The reformation of
a twisted flux rope after each CME eruption during the sustained flux emergence
can naturally explain the X-ray observations of repeated reformations of
sigmoids and "sigmoid-under-cusp" configurations at a low-coronal source of
homologous CMEs.
