منابع مشابه
Stability analysis of stratified two-phase liquid-gas flow in a horizontal pipe
This study aimed at linear stability analysis of the stratified two-phase liquid-gas flow in a horizontal pipe. First, equations governing the linear stability of flow in each phase and boundary conditions were obtained. The governing equations were eigenvalue Orr Sommerfeld equations which are difficult and stiff problems to solve. After obtaining the velocity profiles of the gas and liquid ph...
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We present a novel theory that determines the sensitivity of linear stability to changes in the density or velocity of a base flow. The sensitivity is based on global direct and adjoint eigenmodes of the linearized Boussinesq equation, and is inspired by constantdensity sensitivity analysis. The theory can be applied broadly to incompressible flows with small density variations, but it specific...
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flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
The Stability of Stratified Jets
We study numerically the two dimensional linear instabilities of an incompressible, inviscid, density stratified, symmetric jet as a function of a width parameter, D. In the limit of infinite D, the maximum growth rate of temporal instability exponentially approaches that of the shear flow on either flank of the jet. The growth rate need not approach this limit monotonically, however. For some ...
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ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 1960
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112060000657