NUMERICAL INVESTIGATION OF FLOW STRUCTURE AND BIFURCATION PHENOMENA OF CONFINED PLANE TWIN-JET FLOWS

This work numerically investigates laminar plane twin-jet flows with s ide-wall confinement. Time-dependent computations on the full physical domain are performed in light of the possible emergence of flow unste adiness and an asymmetric pattern. Of particular concern is how wall-c onfinement and jet momentum influence the transition of flow patterns. Results presented herein provide further insight into the complexitie s involving issues such as the variety of flow structure and the relat ed bifurcations, jet-jet and jet-wall interactions, and flow instabili ty involved in the confined twin-jet flow field. (C) 1998 American Ins titute of Physics. [S1070-6631(98)01311-7].