On the possibility of controlling thermal conditions of a typical element of electronic equipment with a local heat source via Natural Convection

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11 Citations (Scopus)

Abstract

The results of mathematical simulation of thermal conditions of a typical element of radio electronics or electronic engineering are reported. The element presents a gas-filled cavity surrounded by finitely thick solid walls and containing a local heat source. It is shown that a change in the emission intensity of the heat source in the initial time stage destabilizes the thermal plume, and a slight external perturbation has a profound effect upon the hydrodynamics and heat transfer in the system. It is established that the possibility exists of controlling the gas flow velocity and the distribution of temperatures in the cavity by choosing the optimal material for the solid walls and the thermal conditions at the outer contour of the decision region.

Original languageEnglish
Pages (from-to)427-442
Number of pages16
JournalRussian Microelectronics
Volume39
Issue number6
DOIs
Publication statusPublished - 1 Nov 2010

Fingerprint

electronic equipment
heat sources
Natural convection
free convection
radio electronics
Electronic equipment
cavities
plumes
gas flow
flow velocity
velocity distribution
heat transfer
hydrodynamics
Thermal plumes
engineering
Electronics engineering
perturbation
electronics
gases
Flow velocity

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

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abstract = "The results of mathematical simulation of thermal conditions of a typical element of radio electronics or electronic engineering are reported. The element presents a gas-filled cavity surrounded by finitely thick solid walls and containing a local heat source. It is shown that a change in the emission intensity of the heat source in the initial time stage destabilizes the thermal plume, and a slight external perturbation has a profound effect upon the hydrodynamics and heat transfer in the system. It is established that the possibility exists of controlling the gas flow velocity and the distribution of temperatures in the cavity by choosing the optimal material for the solid walls and the thermal conditions at the outer contour of the decision region.",
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AB - The results of mathematical simulation of thermal conditions of a typical element of radio electronics or electronic engineering are reported. The element presents a gas-filled cavity surrounded by finitely thick solid walls and containing a local heat source. It is shown that a change in the emission intensity of the heat source in the initial time stage destabilizes the thermal plume, and a slight external perturbation has a profound effect upon the hydrodynamics and heat transfer in the system. It is established that the possibility exists of controlling the gas flow velocity and the distribution of temperatures in the cavity by choosing the optimal material for the solid walls and the thermal conditions at the outer contour of the decision region.

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