Viscosity influence on the stability of a swirling jet with nonrotating core
作者:L. G. Sarasúa、A. C. Sicardi Schifino
DOI:10.1063/1.870409
日期:2000.6
The effect of the viscosity on the linear stability of a swirling top hat jet with nonrotatingcore is studied analytically. Numerical values of the growth rate are obtained. It is shown that the viscosity induces instabilities in the region of wave numbers where no inviscid instability occurs. In the short wave limit, the asymptotic solution reveals that the situation is quite different for the strictly