Absolute and convective instabilities of heated coaxial jet flow

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Absolute and convective instabilities of heated coaxial jet flow

This study investigates the inviscid, linear spatio-temporal stability of heated, compressible and incompressible coaxial jet flows. The influence of the temperature ratio and the velocity ratio between the core jet and the bypass stream on the transition from convectively to absolutely unstable flows is studied numerically. The investigation shows that for coaxial jets absolute instability can...

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ژورنال

عنوان ژورنال: Physics of Fluids

سال: 2015

ISSN: 1070-6631,1089-7666

DOI: 10.1063/1.4919594