Imperial College London
Alternate

ProfessorMatthewPiggott

Faculty of Engineering, Department of Earth Science & Engineering

Professor of Computational Geoscience and Engineering
 
 
 
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Contact

 

m.d.piggott Website

 
 
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Location

 

4.82Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Pan:2021:10.1016/j.ocemod.2020.101732,
author = {Pan, W and Kramer, SC and Piggott, MD},
doi = {10.1016/j.ocemod.2020.101732},
journal = {Ocean Modelling},
pages = {1--21},
title = {A sigma-coordinate non-hydrostatic discontinuous finite element coastal ocean model},
url = {http://dx.doi.org/10.1016/j.ocemod.2020.101732},
volume = {157},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A-coordinate non-hydrostatic coastal ocean model is developed using the discontinuous Galerkin fi-nite element method. With the selection of the low-order piecewise-constant PDG0and piecewise-linearPDG1discretisations in the vertical for the velocity and pressure fields, respectively, the proposed-coordinatemodel can naturally retain the wave dispersion characteristics of the widely-adopted multi-layer approach ofZijlema and Stelling (2005), which is demonstrated through both mathematical derivation and numerical tests.Under the finite element approach, higher-order vertical discretisation choices can also be readily made whichcan reduce the number of vertical layers required for the accurate representation of wave dispersion. Themodel is verified and validated through comparisons against a series of test cases with analytical solutions orexperimental measurements. All the comparisons demonstrate good agreement, indicating that the proposedmodel can accurately represent dispersive barotropic surface waves with as few as one vertical layer, and cansimulate baroclinic internal waves with reasonable accuracy using relatively coarse mesh resolution. It is alsodemonstrated that consistency in the coupling of barotropic and baroclinic flows can be properly ensured.
AU  - Pan,W
AU  - Kramer,SC
AU  - Piggott,MD
DO  - 10.1016/j.ocemod.2020.101732
EP  - 21
PY  - 2021///
SN  - 1463-5003
SP  - 1
TI  - A sigma-coordinate non-hydrostatic discontinuous finite element coastal ocean model
T2  - Ocean Modelling
UR  - http://dx.doi.org/10.1016/j.ocemod.2020.101732
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000600831700005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/pii/S1463500320302341?via%3Dihub
UR  - http://hdl.handle.net/10044/1/86811
VL  - 157
ER  -
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