..., recirculation zone and axis-switching. Design/methodology/approach Numerical simulations were performed on an elliptic ( AR 2) primary jet surrounded by a modified elliptic co-flow jet with three lip thicknesses (3, 6 and 9 mm). Both the jets were considered at Mach 0.8 by maintaining an annular gap of 5...

...-divergent (C-D) injections at the nozzle exit. The objective is to evaluate the effectiveness of these injections, in two different configurations [injection along the major axis (IMA) and injection along the minor axis (IMI)], on jet mixing/decay, axis-switching and entrainment characteristics at three...

... axis produce 80% reduction in the potential core, whereas that along the major axis brings down the axis-switching location to 0.95 Deq from 3.7 Deq. Practical implications In aerospace applications, enhancing the mixing between fuel and air would result in better combustion efficiency, faster...