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A three-dimensional numerical experiment of the launching of a hot and fastcoronal jet followed by several violent eruptions is analyzed in detail. Theseevents are initiated through the emergence of a magnetic flux rope from thesolar interior into a coronal hole. We explore the evolution of the emergingmagnetically-dominated plasma dome surmounted by a current sheet and theensuing pattern of reconnection. A hot and fast coronal jet with inverted-Yshape is produced that shows properties comparable to those frequently observedwith EUV and X-Ray detectors. We analyze its 3D shape, its inhomogeneousinternal structure, and its rise and decay phases, lasting for some 15-20 mineach. Particular attention is devoted to the field-line connectivities and thereconnection pattern. We also study the cool and high-density volume thatappears encircling the emerged dome. The decay of the jet is followed by aviolent phase with a total of five eruptions. The first of them seems to followthe general pattern of tether-cutting reconnection in a sheared arcade,although modified by the field topology created by the preceding reconnectionevolution. The two following eruptions take place near and above the strongfield-concentrations at the surface. They show a twisted, \Omega-loop like ropeexpanding in height, with twist being turned into writhe, thus hinting at akink instability (perhaps combined with a torus-instability) as the cause ofthe eruption. The succession of a main jet ejection and a number of violenteruptions that resemble mini-CME's and their physical properties suggest thatthis experiment may provide a model for the blowout jets recently proposed inthe literature.

Plasma Jets and Eruptions in Solar Coronal Holes: a 3D flux emergence experiment