Thermal Experimental Investigation Of
Radiative Heat Transfer For The Validation Of
Radiation Models
Author(s)
N. P. Lavery, M. R. Vujičić & S. G. R. Brown
Abstract
The computation of the fraction of the thermal radiation power that leaves one
surface and arrives at another, ultimately requires the determination of the
geometrical view factors for radiation modelling. Several methods for the
calculation of geometrical factors are available, including contour integration,
Monte Carlo and the Hemi-Cube methods. Analytical test cases are available as
benchmarks of the view factor, such as for the well-known parallel plates case,
which allow modellers to validate their geometrical factor routines. However,
there are no analytical solutions that simultaneously combine view factor
information with conductive and radiative heat transfer effects.
This paper describes the construction of a simple test rig that allows
experiments to be performed with emphasis on measuring the radiative heat
transfer to benchmark coupled conduction and radiation heat transfer models in
which convection aspects are of less importance. The equipment has been used
to look at various heat transfer cases, such as, between parallel plates, between
inclined hinged plates and the thermal effects of third surface shadowing. The
models developed incorporate the Finite Element method and numerical methods
for the view factor calculation. The results of these experiments are presented as
benchmarking data for other model users and developers.
Keywords: Monte-Carlo view factors, experimental data, finite element,
radiative and conductive thermal model.
Keywords
Monte-Carlo view factors, experimental data, finite element,
radiative and conductive thermal model.
Related Book
Other papers in this volume
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