Two-Dimensional Problem of Turbulent Natural Convection in a Semi-Open Cavity with Radiant Heating of Internal Boundaries

Abstract

Mathematical modelling of turbulent natural convection in a semi-open cavity with a heat-conducting walls of finite thickness with radiant heating of internal boundaries was performed. Two-dimensional problem of the conjugate heat transfer was solved by means of the finite difference method. Scale influence of open boundaries and radiant heating of the gas - wall interfaces on the formation of differential and integral heat transfer characteristics was established. An increase in the dimensionless time (τ) led to displacement of extremum temperatures in the typical cross section (Y = 0.5) to an open vertical boundary. The average Nusselt number monotonically increased at the gas - a wall interfaces in a range of 400<τ<1200.

Original language	English
Article number	01120
Journal	MATEC Web of Conferences
Volume	72
DOIs	https://doi.org/10.1051/matecconf/20167201120
Publication status	Published - 9 Aug 2016
Event	Heat and Mass Transfer in the System of Thermal Modes of Energy - Technical and Technological Equipment, HMTTSC 2016 - Tomsk, Russian Federation Duration: 19 Apr 2016 → 21 Apr 2016

ASJC Scopus subject areas

Chemistry(all)
Engineering(all)
Materials Science(all)

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10.1051/matecconf/20167201120

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title = "Two-Dimensional Problem of Turbulent Natural Convection in a Semi-Open Cavity with Radiant Heating of Internal Boundaries",

abstract = "Mathematical modelling of turbulent natural convection in a semi-open cavity with a heat-conducting walls of finite thickness with radiant heating of internal boundaries was performed. Two-dimensional problem of the conjugate heat transfer was solved by means of the finite difference method. Scale influence of open boundaries and radiant heating of the gas - wall interfaces on the formation of differential and integral heat transfer characteristics was established. An increase in the dimensionless time (τ) led to displacement of extremum temperatures in the typical cross section (Y = 0.5) to an open vertical boundary. The average Nusselt number monotonically increased at the gas - a wall interfaces in a range of 400<τ<1200.",

author = "Alexander Nee and Liliya Valieva",

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AU - Valieva, Liliya

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N2 - Mathematical modelling of turbulent natural convection in a semi-open cavity with a heat-conducting walls of finite thickness with radiant heating of internal boundaries was performed. Two-dimensional problem of the conjugate heat transfer was solved by means of the finite difference method. Scale influence of open boundaries and radiant heating of the gas - wall interfaces on the formation of differential and integral heat transfer characteristics was established. An increase in the dimensionless time (τ) led to displacement of extremum temperatures in the typical cross section (Y = 0.5) to an open vertical boundary. The average Nusselt number monotonically increased at the gas - a wall interfaces in a range of 400<τ<1200.

AB - Mathematical modelling of turbulent natural convection in a semi-open cavity with a heat-conducting walls of finite thickness with radiant heating of internal boundaries was performed. Two-dimensional problem of the conjugate heat transfer was solved by means of the finite difference method. Scale influence of open boundaries and radiant heating of the gas - wall interfaces on the formation of differential and integral heat transfer characteristics was established. An increase in the dimensionless time (τ) led to displacement of extremum temperatures in the typical cross section (Y = 0.5) to an open vertical boundary. The average Nusselt number monotonically increased at the gas - a wall interfaces in a range of 400<τ<1200.

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