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Investigation of wind and tidal forcing on stratified flows in Greenland fjords with TELEMAC-3D

Violeta Moloney, Harshinie Karunarathna Orcid Logo, Tavi Murray Orcid Logo, Ian Rutt, Alistair Everett, Dominic Reeve Orcid Logo

European Journal of Computational Mechanics, Volume: 25, Issue: 3, Pages: 249 - 272

Swansea University Authors: Violeta Moloney, Harshinie Karunarathna Orcid Logo, Tavi Murray Orcid Logo, Ian Rutt, Alistair Everett, Dominic Reeve Orcid Logo

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DOI (Published version): 10.1080/17797179.2016.1191121

Abstract

Many researchers have analysed the effect of wind on fjord dynamics by using two-dimensional numerical models. This paper investigates the wind and tidal forcing effects on the strong stratification and circulation by application of the three-dimensional model TELEMAC-3D. The capability of the model...

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Published in: European Journal of Computational Mechanics
ISSN: 1779-7179 1958-5829
Published: River Publishers 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa52639
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spelling 2023-02-22T15:58:18.5335217 v2 52639 2019-11-04 Investigation of wind and tidal forcing on stratified flows in Greenland fjords with TELEMAC-3D a2b1f85e2b2c055547869ba024958364 Violeta Moloney Violeta Moloney true false 0d3d327a240d49b53c78e02b7c00e625 0000-0002-9087-3811 Harshinie Karunarathna Harshinie Karunarathna true false 8d6e71df690e725cd44191006dac31da 0000-0001-6714-6512 Tavi Murray Tavi Murray true false f9c4ec2261d7314c99cb5eec0f75394f Ian Rutt Ian Rutt true false 091bd9a7febbc7894e120e0dc38c999c Alistair Everett Alistair Everett true false 3e76fcc2bb3cde4ddee2c8edfd2f0082 0000-0003-1293-4743 Dominic Reeve Dominic Reeve true false 2019-11-04 FGSEN Many researchers have analysed the effect of wind on fjord dynamics by using two-dimensional numerical models. This paper investigates the wind and tidal forcing effects on the strong stratification and circulation by application of the three-dimensional model TELEMAC-3D. The capability of the model to reproduce the physical processes has been investigated by applying it to Sermilik Fjord, Greenland. This study shows that the major changes in the fjord dynamics are wind induced. Any changes in the wind speed have an instant impact on the water surface velocities. Also, the diffusively driven circulation produced by the horizontal pressure gradients at coast plays an important role in fjord dynamics. After calibration, the tidal model produced matching results with the measured wave height. The tidal analysis shows that the strength and direction of the tidal currents are sensitive to any changes in the width and shape of the domain. The effect of the tidal propagation on the salinity profile has been shown to play an important role, with salinity picks being 5–6 h behind the tidal flood and ebb picks, along the wind forcing, on the fjord circulation. TELEMAC-3D is a suitable model to simulate accurately such complicated dynamics as in presented case study. Journal Article European Journal of Computational Mechanics 25 3 249 272 River Publishers 1779-7179 1958-5829 Stratification, horizontal pressure gradients, Coriolis force, buoyancy force, fjord circulation, double diffusion, Ekman transport 3 5 2016 2016-05-03 10.1080/17797179.2016.1191121 http://dx.doi.org/10.1080/17797179.2016.1191121 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2023-02-22T15:58:18.5335217 2019-11-04T14:25:32.9196272 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Violeta Moloney 1 Harshinie Karunarathna 0000-0002-9087-3811 2 Tavi Murray 0000-0001-6714-6512 3 Ian Rutt 4 Alistair Everett 5 Dominic Reeve 0000-0003-1293-4743 6
title Investigation of wind and tidal forcing on stratified flows in Greenland fjords with TELEMAC-3D
spellingShingle Investigation of wind and tidal forcing on stratified flows in Greenland fjords with TELEMAC-3D
Violeta Moloney
Harshinie Karunarathna
Tavi Murray
Ian Rutt
Alistair Everett
Dominic Reeve
title_short Investigation of wind and tidal forcing on stratified flows in Greenland fjords with TELEMAC-3D
title_full Investigation of wind and tidal forcing on stratified flows in Greenland fjords with TELEMAC-3D
title_fullStr Investigation of wind and tidal forcing on stratified flows in Greenland fjords with TELEMAC-3D
title_full_unstemmed Investigation of wind and tidal forcing on stratified flows in Greenland fjords with TELEMAC-3D
title_sort Investigation of wind and tidal forcing on stratified flows in Greenland fjords with TELEMAC-3D
author_id_str_mv a2b1f85e2b2c055547869ba024958364
0d3d327a240d49b53c78e02b7c00e625
8d6e71df690e725cd44191006dac31da
f9c4ec2261d7314c99cb5eec0f75394f
091bd9a7febbc7894e120e0dc38c999c
3e76fcc2bb3cde4ddee2c8edfd2f0082
author_id_fullname_str_mv a2b1f85e2b2c055547869ba024958364_***_Violeta Moloney
0d3d327a240d49b53c78e02b7c00e625_***_Harshinie Karunarathna
8d6e71df690e725cd44191006dac31da_***_Tavi Murray
f9c4ec2261d7314c99cb5eec0f75394f_***_Ian Rutt
091bd9a7febbc7894e120e0dc38c999c_***_Alistair Everett
3e76fcc2bb3cde4ddee2c8edfd2f0082_***_Dominic Reeve
author Violeta Moloney
Harshinie Karunarathna
Tavi Murray
Ian Rutt
Alistair Everett
Dominic Reeve
author2 Violeta Moloney
Harshinie Karunarathna
Tavi Murray
Ian Rutt
Alistair Everett
Dominic Reeve
format Journal article
container_title European Journal of Computational Mechanics
container_volume 25
container_issue 3
container_start_page 249
publishDate 2016
institution Swansea University
issn 1779-7179
1958-5829
doi_str_mv 10.1080/17797179.2016.1191121
publisher River Publishers
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
url http://dx.doi.org/10.1080/17797179.2016.1191121
document_store_str 0
active_str 0
description Many researchers have analysed the effect of wind on fjord dynamics by using two-dimensional numerical models. This paper investigates the wind and tidal forcing effects on the strong stratification and circulation by application of the three-dimensional model TELEMAC-3D. The capability of the model to reproduce the physical processes has been investigated by applying it to Sermilik Fjord, Greenland. This study shows that the major changes in the fjord dynamics are wind induced. Any changes in the wind speed have an instant impact on the water surface velocities. Also, the diffusively driven circulation produced by the horizontal pressure gradients at coast plays an important role in fjord dynamics. After calibration, the tidal model produced matching results with the measured wave height. The tidal analysis shows that the strength and direction of the tidal currents are sensitive to any changes in the width and shape of the domain. The effect of the tidal propagation on the salinity profile has been shown to play an important role, with salinity picks being 5–6 h behind the tidal flood and ebb picks, along the wind forcing, on the fjord circulation. TELEMAC-3D is a suitable model to simulate accurately such complicated dynamics as in presented case study.
published_date 2016-05-03T04:05:07Z
_version_ 1763753388826165248
score 11.014067

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