Last edited by Gakora
Tuesday, July 21, 2020 | History

6 edition of Stability of Convective Flows found in the catalog.

Stability of Convective Flows

Presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, Anaheim, California, November (AMD)

by American Society of Mechanical Engineers

  • 110 Want to read
  • 13 Currently reading

Published by American Society of Mechanical Engineers .
Written in English

    Subjects:
  • Material Science,
  • Technology & Industrial Arts

  • The Physical Object
    FormatPaperback
    Number of Pages65
    ID Numbers
    Open LibraryOL7804277M
    ISBN 100791810615
    ISBN 109780791810613

    Home > Journals > Journal of Porous Media > Vol Issue 1 > MARGINAL STABILITY ANALYSIS FOR A CONVECTIVE FLOW IN A POROUS MEDIUM WITH VERTICALLY VARYING RESISTIVITY IF: 5-Year IF: SJR: SNIP: CiteScore™: Stability of Hartmann flow with the convective.

    It was found that at two different values of the Prandtl number considered the instability is caused by different infinitely small dominant perturbations, which means that the convective heat transfer strongly affects stability of the flow even for cases having small Prandtl number. Abstract: The manuscript reports the stability mechanism of chemically reacting Double diffusive free convective flow in a horizontal layer of viscoelastic Maxwell fluid through porous medium with internal linear heating. The flow is also induced by the magnetic effect which gravitational aligned (0,0,-g). Due to.

      A problem of stability of steady convective flows in rectangular cavities is revisited and studied by a second‐order finite volume method. The study is motivated by further applications of the finite volume‐based stability solver to more complicated applied problems, which needs an estimate of convergence of critical parameters. It is shown that for low‐order methods the quantitatively. Nonlinear Stability Analysis and Modeling for Convective Flows (D N Riahi) Modeling and Simulation for Primary Instabilities in Shear Flows (D N Riahi) Görtler Vortices with System Rotation (A Zebib et al.) Readership: Scientists, engineers and students in mechanics, physics and mathematics.


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Stability of Convective Flows by American Society of Mechanical Engineers Download PDF EPUB FB2

Stability of convective flows in porous media. Thermal convection is often encountered by scientists and engineers while designing or analyzing flows involving exchange of energy. Fundamentals of Convective Heat Transfer is a unified text that captures the physical insight into convective heat transfer and thorough, analytical, and numerical also focuses on the latest developments in the theory of convective energy Author: Gautam Biswas, Amaresh Dalal, Vijay K.

Dhir. The text then examines the effect of convective flow on morphological stability and time-dependent natural convection in crystal growth systems. The manuscript elaborates on the effects of fluid flow on the solidification of industrial castings and ingots and application of holographic interferometry to hydrodynamic phenomena in crystal Edition: 1.

Stability of convective flows in cavities: solution of benchmark problems by a low-order finite volume method. Laminar Flow and Convective Transport Processes: Scaling Principles and Asymptotic Analysis presents analytic methods for the solution of fluid mechanics and convective transport processes, all in the laminar flow regime.

This book brings together the results of almost 30 years of research on the use of nondimensionalization, scaling principles. A problem of stability of steady convective flows in rectangular cavities is revisited and studied by a second-order finite volume method.

The study is motivated by further applications of the. Unfortunately, we have found only one paper in which the numerical analysis of the convective flow with Prandtl number Pr =which is very close to Pr = used in this study, is presented without rotation of the inner sphere (Re = 0) and without performing stability analysis.

The two-dimensional basic flow and the temperature were. The Unsteady Potential Flow in an Axially Variable Annulus and Its Effect on the Dynamics of the Oscillating Rigid Center-Body J.

Fluids Eng (September, ) Laminar-Turbulent Flow in. Birikh and R. Rudakov, “Influence of motion of the walls on the stability of convective flow between vertical planes,” Uch. Zap. Permsk. Convection in a porous medium at high Rayleigh number $\mathit{Ra}$ exhibits a striking quasisteady columnar structure with a well-defined and $\mathit{Ra}$ -dependent horizontal mechanism that controls this scale is not currently understood.

Motivated by this problem, the stability of a density-driven ‘heat-exchanger’ flow in a porous medium is investigated. () Pore water convection within carbonaceous chondrite parent bodies: Temperature-dependent viscosity and flow structure.

Physics of Fluids() Multiplicity of nonlinear thermal convection in a spherical shell. Abstract: The linear stability of a convective flow in a vertical pipe generated by internal heat sources of constant volume density is analyzed in the present paper.

The linear stability problem is solved for different values of the parameters of the problem. It is shown that for low Prandtl numbers instability is.

A problem of stability of steady convective flows in rectangular cavities is revisited and studied by a second‐order finite volume method. The study is motivated by further applications of the finite volume‐based stability solver to more complicated applied problems, which needs an estimate of convergence of critical parameters.

Stability of convective flows: presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, Anaheim, California, NovemberAuthor: P G Simpkins ; A Liakopoulos ; American Society of Mechanical Engineers.

Abstract A presentation is made of the basic results on the stability of the convective flow of fluid in a saturated porous medium. The case of convection produced by vertical density gradients in a horizontal layer is treated in detail.

Linear stability analysis is presented. A local convective stability criterion which allows for rotation and for changes in convection in the system's initial gravitational field is derived in the present paper.

It is shown that in flat galaxies, the region in which convection can take place coincides approximately with the region of rigid rotation. This paper reflects the effects of velocity and thermal slip conditions on the stagnation-point mixed convective flow of Cross liquid moving over a vertical plate entrenched in a Darcy–Forchheimer porous medium.

A Cross liquid is a type of non-Newtonian liquid whose viscosity depends on the shear rate. The leading partial differential equations (PDEs) are altered to nonlinear ordinary. Stability in convective flows: presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, Miami Beach, Florida, November(Book, ) [] Get this from a library.

A linear stability analysis of a convective atmospheric cloud flow is performed. The influence of gravity as well as the entrainment rate on the flow stability is investigated.

The existence of a characteristic scale close to wavelengths, as that of JEANS, is revealed. In this paper bifurcation theory and group theoretical methods are applied to the analysis of the stationary convection of a fluid filling a spherical shell which is rotating (or not rotating) about an axis with a constant angular speed.

In the case with rotation, an analytical relation is found between the Rayleigh number and the Taylor number, for which a transcritical branch of stationary. A universal criterion for the stability under arbitrary disturbances of the convective flow of a fluid in a porous medium is obtained in terms of a Reynolds number and a Rayleigh number for the flow.

It is also shown that stability bounds obtained by small perturbation methods are equally good bounds under arbitrary disturbances.In meteorology, convective instability or stability of an air mass refers to its ability to resist vertical motion.

A stable atmosphere makes vertical movement difficult, and small vertical disturbances dampen out and disappear. In an unstable atmosphere, vertical air movements (such as in orographic lifting, where an air mass is displaced upwards as it is blown by wind up the rising slope of.The linear stability of thermally stratified horizontal two‐phase Couette flow is analyzed for the case of a constant vertical temperature gradient.

Instabilities driven by buoyancy, surface tension gradients, or shear are allowed for.