Nonlinear acoustic oscillations in swirling gas flows

被引：0
|
作者：
K. N. Visheratin
M. V. Kalashnik
机构：
[1] Specientific and Industrial Union ”Typhoon”,Obukhov Institute of Atmospheric Physics
[2] Russian Academy of Sciences,undefined
来源：
Fluid Dynamics | 2014年 / 49卷
关键词：
gasdynamics; swirling flows; isentropic flows; acoustic oscillations; Ranque tubes;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A class of exact solution of the gasdynamics equations with the linear dependence of the velocity components on the coordinates and a functional arbitrariness in the density (entropy) distribution is constructed. Using this class the characteristics of acoustic oscillations occurring, when a swirling gas flow deviates from the steady cyclostrophic equilibrium regime, that is, the equilibrium between the pressure gradient and the centrifugal force, are studied. An expression for the fundamental oscillation frequency agreeing with the measurements is derived.
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页码：530 / 539
页数：9
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