Effects of axial flow on the curvature instability of a helical vortex tube:modal analysis

【Author】

Yuji Hattori;Yasuhide Fukumoto;

【Abstract】

<正>The short-wave instability of a helical vortex tube with axial flow, which is a model of the helical vortices formed around rotating blades,is studied by modal stability analysis.The exponential growth rate is evaluated by perturbation expansion,where the expansion parameter is the ratio of core to curvature radius.At the

【Keywords】

Effects of axial flow on the curvature instability of a helical vortex tube;

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