Boundary and inertia effects on vortex instability of a horizontal mixed convection flow in a porous medium

Kun Nun Lie, Jiin-Yuh Jang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Non-Darcian effects, including the effects of boundary and inertia, are examined on the flow and vortex instability of a horizontal mixed convective boundary layer flow in a high-porosity medium. In the base flow, the governing conservation equations are solved by using a suitable variable transformation and employing an implicit finite-difference scheme. The stability analysis is based on linear stability theory, and the resulting equations are solved on the basis of the local similarity approximations. The results show that the flow becomes more susceptible to the vortex mode of disturbances as buoyancy force is increased. In addition, both the boundary and inertia effects reduce the heat transfer rate and stabilize the flow to the vortex mode of disturbances.

Original languageEnglish
Pages (from-to)361-378
Number of pages18
JournalNumerical Heat Transfer; Part A: Applications
Volume23
Issue number3
DOIs
Publication statusPublished - 1993 Jan 1

Fingerprint

Mixed Convection
Mixed convection
inertia
Inertia
Porous Media
Porous materials
Vortex
Vortex flow
convection
Horizontal
vortices
disturbances
base flow
boundary layer flow
Boundary layer flow
Disturbance
conservation equations
Buoyancy
buoyancy
Variable Transformation

All Science Journal Classification (ASJC) codes

  • Numerical Analysis
  • Condensed Matter Physics

Cite this

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abstract = "Non-Darcian effects, including the effects of boundary and inertia, are examined on the flow and vortex instability of a horizontal mixed convective boundary layer flow in a high-porosity medium. In the base flow, the governing conservation equations are solved by using a suitable variable transformation and employing an implicit finite-difference scheme. The stability analysis is based on linear stability theory, and the resulting equations are solved on the basis of the local similarity approximations. The results show that the flow becomes more susceptible to the vortex mode of disturbances as buoyancy force is increased. In addition, both the boundary and inertia effects reduce the heat transfer rate and stabilize the flow to the vortex mode of disturbances.",
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Boundary and inertia effects on vortex instability of a horizontal mixed convection flow in a porous medium. / Lie, Kun Nun; Jang, Jiin-Yuh.

In: Numerical Heat Transfer; Part A: Applications, Vol. 23, No. 3, 01.01.1993, p. 361-378.

Research output: Contribution to journalArticle

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