Abstract
Particle tracing in curvilinear grids often employs decomposition of hexahedral cells into 5 tetrahedra. This method has shortcomings when applied to σ-transformed grids, a grid type having strongly sheared cells, commonly used in hydrodynamic simulations. This paper describes an improved decomposition method into 6 tetrahedra. It is shown that this method is robust in σ-transformed grids, however large the shearing. Results are presented of applying the technique to a real world simulation. Comparisons are made between the accuracy and speed of the 6-decomposition and the 6-decomposition methods.
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Sadarjoen, I.A., de Boer, A.J., Post, F.H., Mynett, A.E. (1998). Particle Tracing in σ-Transformed Grids using Tetrahedral 6-Decomposition. In: Bartz, D. (eds) Visualization in Scientific Computing ’98. Eurographics. Springer, Vienna. https://doi.org/10.1007/978-3-7091-7517-0_7
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DOI: https://doi.org/10.1007/978-3-7091-7517-0_7
Publisher Name: Springer, Vienna
Print ISBN: 978-3-211-83209-7
Online ISBN: 978-3-7091-7517-0
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