Use Of Graphics Software In Radiative Heat
Transfer Simulation
Author(s)
K. Domke
Abstract
A base equation of radiative heat transfer, along with typical calculation
methods, has been presented. Goals and base equation of computer graphics
programs have been described. A quick analysis of graphics programs has been
made, and their functions have been compared with the functions of other
programs for radiative heat transfer modeling. Conditions that should be fulfilled
by graphics programs in order to be used for modeling radiative transfer have
been given. Formulas transforming heat quantities to radiant quantities, as used
for Dirichlet’s and Neumann’s boundary conditions, have been presented.
Keywords: modeling of radiative heat transfer, graphics software.
1 Introduction
Radiative heat transfer is one of three basic ways of heat transfer. It is a common
phenomenon, consisting in heat energy (power) transfer through electromagnetic
(infrared) radiation, mainly with a wavelength of λ∈(0,78−1000)µm, between
nontransparent (or translucent) surfaces of temperature above 0K. Even in
temperature conditions of (0−50)oC range, for non-vacuum systems, the share of
this method of heat transfer is ca (15−20)% of the total heat transfer, and
increases significantly in higher temperatures. It is also the only method of heat
transfer in vacuum systems. In many electrotechnical devices determining
temperature fields related to normal work and operation of these devices is a
basic condition for verifying the correctness of their construction and it
determines their admissible loads. Hence the significance of methods allowing
one to calculate temperature distributions and power fluxes related to heat
transfer, including radiative heat transfer. Omitting radiative heat transfer in
Keywords
modeling of radiative heat transfer, graphics software.
Related Book
Other papers in this volume
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