BREAKING POINT FOR THE STABILITY OF SWIRLING FLOWS

BREAKING POINT FOR THE STABILITY OF SWIRLING FLOWS

We study incompressible, inviscid, non-homogeneous swirling flows. For this, first we derived an unbounded region that intersect with Sasakura's semi-ellipse region under certain condition. The result has been explained with two examples. Second, we derived a bounded instability region which lies inside Sasakura's semi-ellipse region. Third, we derived an estimate for growth rate, amplification factor. Fourth, we derived a criterion for breaking point for stability. The result has been explained with two standard examples.

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