Flow structures in initial region of two interacting parallel plane jets

摘要: Abstract The initial region of two interacting parallel plane jets with a truncated bluff body at the symmetry is studied velocity measurements in frequency and time domains. mean flows are nearly to symmetry, their inner outer mixing regions found. Within these respective trains coherent structures, which vortical form, established. vortices inwardly rotational, while rotate outwardly. successive seem undergo processes either pairing or amalgamation. former results formation circular structure, latter elongated structure. Both other structures experience fairly rapid decay. process decay also seems be usual division coalesced structure back into individual followed by