Vertical Grid Design for More Accurate and Efficient Surf Zone Simulation
Nonuniform vertical discretization is investigated for use with a previously developed numerical model that solves the incompressible, nonhydrostatic, Navier-Stokes equations for free surface flow. The equations are vertically transformed to the sigma coordinate system and solved in a fractional ste...
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Published in | Coastal Engineering Journal Vol. 56; no. 2; pp. 1450009-1 - 1450009-14 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Abingdon
Taylor & Francis
01.06.2014
World Scientific Publishing Company and Japan Society of Civil Engineers Taylor & Francis Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Nonuniform vertical discretization is investigated for use with a previously developed numerical model that solves the incompressible, nonhydrostatic, Navier-Stokes equations for free surface flow. The equations are vertically transformed to the sigma coordinate system and solved in a fractional step manner in which the pressure is computed implicitly by correcting the hydrostatic flow field to be divergence free. A specific discretization is proposed to attain greater accuracy and/or minimize computational effort when compared to a uniform vertical discretization. Numerical accuracy is assessed by comparison with experimental data for spilling and plunging breakers. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2166-4250 0578-5634 1793-6292 |
DOI: | 10.1142/S0578563414500090 |