Small and moderate Vadasz number chaotic convection in porous media in the presence of non-Boussinesq effects and feedback control

M. N. Mahmud, Ishak Hashim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Feedback control on thermal convection in a fluid-saturated porous medium is investigated based on the approach of dynamical systems. A low dimensional Lorenz-like model was obtained using the Galerkin truncated approximation. The possible suppression or enhancement of chaotic convection is demonstrated.

Original languageEnglish
Pages (from-to)2382-2393
Number of pages12
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume375
Issue number24
DOIs
Publication statusPublished - 13 Jun 2011

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feedback control
free convection
dynamical systems
convection
retarding
augmentation
fluids
approximation

Keywords

  • Chaotic behaviour
  • Feedback control
  • Lorenz equations
  • Non-Boussinesq system
  • Porous media

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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abstract = "Feedback control on thermal convection in a fluid-saturated porous medium is investigated based on the approach of dynamical systems. A low dimensional Lorenz-like model was obtained using the Galerkin truncated approximation. The possible suppression or enhancement of chaotic convection is demonstrated.",
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AU - Mahmud, M. N.

AU - Hashim, Ishak

PY - 2011/6/13

Y1 - 2011/6/13

N2 - Feedback control on thermal convection in a fluid-saturated porous medium is investigated based on the approach of dynamical systems. A low dimensional Lorenz-like model was obtained using the Galerkin truncated approximation. The possible suppression or enhancement of chaotic convection is demonstrated.

AB - Feedback control on thermal convection in a fluid-saturated porous medium is investigated based on the approach of dynamical systems. A low dimensional Lorenz-like model was obtained using the Galerkin truncated approximation. The possible suppression or enhancement of chaotic convection is demonstrated.

KW - Chaotic behaviour

KW - Feedback control

KW - Lorenz equations

KW - Non-Boussinesq system

KW - Porous media

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JO - Physics Letters, Section A: General, Atomic and Solid State Physics

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