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@ARTICLE{Beale:1025154,
author = {Beale, Steven B. and Malin, M. R. and Marschall, H.},
title = {{REMARKS} {ON} {THE} {PHYSICAL} {BASIS} {FOR} {THE}
{CONSTRUCTION} {OF} {DIFFUSION} {FLUX} {TERMS} {IN}
{FINITE}-{VOLUME} {EQUATIONS}},
journal = {Computational thermal sciences},
volume = {16},
number = {3},
issn = {1940-2503},
address = {Redding, Conn.},
publisher = {Begell House},
reportid = {FZJ-2024-02731},
pages = {71 - 87},
year = {2024},
abstract = {The formulation for the diffusion terms in unstructured
meshes is compared to that previously derived by the present
authors and others for structured body-fitted meshes in
terms of direction cosines between the normal and tangential
directions. The so-called 'over-relaxed' approach is
entirely equivalent/identical, subject to the caveat that
the gradient of a scalar field is computed as the product of
the scalar and the local surface area vector per unit volume
summed (integrated) over the cell volumes, rather than by
bilinear field interpolation. The physical/mathematical
basis for the 'minimum correction' and 'orthogonal
correction' approaches is not consistent with the present
authors' derivation, which is in agreement with previous
observations. The derivation for a structured mesh here
differs from previous work in that physical, rather than
mathematical components/projections of vectors are
considered, thus filling a significant historical gap in the
literature.},
cin = {IEK-13},
ddc = {530},
cid = {I:(DE-Juel1)IEK-13-20190226},
pnm = {1222 - Components and Cells (POF4-122)},
pid = {G:(DE-HGF)POF4-1222},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001278475800001},
doi = {10.1615/ComputThermalScien.2024049108},
url = {https://juser.fz-juelich.de/record/1025154},
}