Abstract
Numerical solutions for the normal impingement of inviscid axisymmetric jets with energy deficient cores reveal three distinct classes of behavior: 1) a small defect regime where the flow structure is unchanged from the zero defect case, 2) a moderate defect regime where stagnation bubbles first appear and grow with increased defect, and 3) a strong defect regime, where no solutions have been found. The recirculation zone model presumes that vorticity over radius is constant and continuous across the dividing stream surface. A local analytic solution to the governing partial differential equation for the stagnation bubble is consistent with the computational results.
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