Influence of turbulence on sediment motion in an estuarine system

MD Sarik Salim; Florence Isabelle Verspecht; Charitha Pattiaratchi

Influence of turbulence on sediment motion in an estuarine system

MD Sarik Salim, Florence Isabelle Verspecht, Charitha Pattiaratchi

Research output: Chapter in Book/Conference paper › Conference paper › peer-review

Abstract

Recent research studies have shown an increasing interest in the turbulent bursting events corresponding to sediment entrainment and resuspension in an estuarine system. Several investigations have been carried out on the entrainment threshold of sediment. But there remains an inadequate attention to many cases. In particular, the exact interaction between the particles and the fluid, in the level of particle micromechanics in association with the probabilistic feature of turbulent eddies, has not been completely revealed. This paper is a field study on turbulence driven transport of sediments along the lower Swan Estuary of Western Australia. High frequency data have been collected with an Acoustic Doppler Velocimeter (ADV) and an Optical Backscatter Sensor (OBS) in the lower Swan Estuary during ebb tide conditions in ~1.1 m water depth. The collected field data has been post processed using Reynolds decomposition and the quadrant analysis method to understand the role of turbulent coherent structure on resuspension and transport of sediment. Moreover, this analysis improves the knowledge regarding the generation mechanism of ‘bursting phenomenon’ as well as the importance of turbulent bursting events in association with acceleration and deceleration in tidal currents.

Original language	English
Title of host publication	Coasts and Ports 2013
Subtitle of host publication	21st Australasian coastal and ocean engineering conference and the 14th Australasian Port and Harbour conference / National Committee for Coastal and Ocean Engineering, Engineers Australia, PIANC and IPENZ.
Editors	I.L. Turner, E.D. Couriel
Place of Publication	Barton, Australia
Publisher	Engineers Australia
Number of pages	6
ISBN (Print)	9781922107053
Publication status	Published - 2013
Event	Coasts and Ports 2013: 21st Australasian Coastal and Ocean Engineering Conference and the 14th Australasian Port and Harbour Conference - Sydney, Australia Duration: 11 Sep 2013 → 13 Sep 2013

Conference

Conference	Coasts and Ports 2013: 21st Australasian Coastal and Ocean Engineering Conference and the 14th Australasian Port and Harbour Conference
Abbreviated title	PIANC and IPENZ
Country/Territory	Australia
City	Sydney
Period	11/09/13 → 13/09/13

Cite this

Salim, MD. S., Verspecht, F. I., & Pattiaratchi, C. (2013). Influence of turbulence on sediment motion in an estuarine system. In I. L. Turner, & E. D. Couriel (Eds.), Coasts and Ports 2013: 21st Australasian coastal and ocean engineering conference and the 14th Australasian Port and Harbour conference / National Committee for Coastal and Ocean Engineering, Engineers Australia, PIANC and IPENZ. Engineers Australia.

Salim, MD Sarik ; Verspecht, Florence Isabelle ; Pattiaratchi, Charitha. / Influence of turbulence on sediment motion in an estuarine system. Coasts and Ports 2013: 21st Australasian coastal and ocean engineering conference and the 14th Australasian Port and Harbour conference / National Committee for Coastal and Ocean Engineering, Engineers Australia, PIANC and IPENZ.. editor / I.L. Turner ; E.D. Couriel. Barton, Australia : Engineers Australia, 2013.

@inproceedings{c9ba2e3cddb8416fa29e3fda7ea7f81c,

title = "Influence of turbulence on sediment motion in an estuarine system",

abstract = "Recent research studies have shown an increasing interest in the turbulent bursting events corresponding to sediment entrainment and resuspension in an estuarine system. Several investigations have been carried out on the entrainment threshold of sediment. But there remains an inadequate attention to many cases. In particular, the exact interaction between the particles and the fluid, in the level of particle micromechanics in association with the probabilistic feature of turbulent eddies, has not been completely revealed. This paper is a field study on turbulence driven transport of sediments along the lower Swan Estuary of Western Australia. High frequency data have been collected with an Acoustic Doppler Velocimeter (ADV) and an Optical Backscatter Sensor (OBS) in the lower Swan Estuary during ebb tide conditions in ~1.1 m water depth. The collected field data has been post processed using Reynolds decomposition and the quadrant analysis method to understand the role of turbulent coherent structure on resuspension and transport of sediment. Moreover, this analysis improves the knowledge regarding the generation mechanism of {\textquoteleft}bursting phenomenon{\textquoteright} as well as the importance of turbulent bursting events in association with acceleration and deceleration in tidal currents.",

author = "Salim, {MD Sarik} and Verspecht, {Florence Isabelle} and Charitha Pattiaratchi",

year = "2013",

language = "English",

isbn = "9781922107053",

editor = "I.L. Turner and E.D. Couriel",

booktitle = "Coasts and Ports 2013",

publisher = "Engineers Australia",

address = "Australia",

note = "Coasts and Ports 2013: 21st Australasian Coastal and Ocean Engineering Conference and the 14th Australasian Port and Harbour Conference, PIANC and IPENZ ; Conference date: 11-09-2013 Through 13-09-2013",

}

Salim, MDS, Verspecht, FI & Pattiaratchi, C 2013, Influence of turbulence on sediment motion in an estuarine system. in IL Turner & ED Couriel (eds), Coasts and Ports 2013: 21st Australasian coastal and ocean engineering conference and the 14th Australasian Port and Harbour conference / National Committee for Coastal and Ocean Engineering, Engineers Australia, PIANC and IPENZ.. Engineers Australia, Barton, Australia, Coasts and Ports 2013: 21st Australasian Coastal and Ocean Engineering Conference and the 14th Australasian Port and Harbour Conference, Sydney, Australia, 11/09/13.

Influence of turbulence on sediment motion in an estuarine system. / Salim, MD Sarik; Verspecht, Florence Isabelle; Pattiaratchi, Charitha.

Coasts and Ports 2013: 21st Australasian coastal and ocean engineering conference and the 14th Australasian Port and Harbour conference / National Committee for Coastal and Ocean Engineering, Engineers Australia, PIANC and IPENZ.. ed. / I.L. Turner; E.D. Couriel. Barton, Australia : Engineers Australia, 2013.

Research output: Chapter in Book/Conference paper › Conference paper › peer-review

TY - GEN

T1 - Influence of turbulence on sediment motion in an estuarine system

AU - Salim, MD Sarik

AU - Verspecht, Florence Isabelle

AU - Pattiaratchi, Charitha

PY - 2013

Y1 - 2013

N2 - Recent research studies have shown an increasing interest in the turbulent bursting events corresponding to sediment entrainment and resuspension in an estuarine system. Several investigations have been carried out on the entrainment threshold of sediment. But there remains an inadequate attention to many cases. In particular, the exact interaction between the particles and the fluid, in the level of particle micromechanics in association with the probabilistic feature of turbulent eddies, has not been completely revealed. This paper is a field study on turbulence driven transport of sediments along the lower Swan Estuary of Western Australia. High frequency data have been collected with an Acoustic Doppler Velocimeter (ADV) and an Optical Backscatter Sensor (OBS) in the lower Swan Estuary during ebb tide conditions in ~1.1 m water depth. The collected field data has been post processed using Reynolds decomposition and the quadrant analysis method to understand the role of turbulent coherent structure on resuspension and transport of sediment. Moreover, this analysis improves the knowledge regarding the generation mechanism of ‘bursting phenomenon’ as well as the importance of turbulent bursting events in association with acceleration and deceleration in tidal currents.

AB - Recent research studies have shown an increasing interest in the turbulent bursting events corresponding to sediment entrainment and resuspension in an estuarine system. Several investigations have been carried out on the entrainment threshold of sediment. But there remains an inadequate attention to many cases. In particular, the exact interaction between the particles and the fluid, in the level of particle micromechanics in association with the probabilistic feature of turbulent eddies, has not been completely revealed. This paper is a field study on turbulence driven transport of sediments along the lower Swan Estuary of Western Australia. High frequency data have been collected with an Acoustic Doppler Velocimeter (ADV) and an Optical Backscatter Sensor (OBS) in the lower Swan Estuary during ebb tide conditions in ~1.1 m water depth. The collected field data has been post processed using Reynolds decomposition and the quadrant analysis method to understand the role of turbulent coherent structure on resuspension and transport of sediment. Moreover, this analysis improves the knowledge regarding the generation mechanism of ‘bursting phenomenon’ as well as the importance of turbulent bursting events in association with acceleration and deceleration in tidal currents.

UR - https://trove.nla.gov.au/work/220448513?q&versionId=241834554

M3 - Conference paper

SN - 9781922107053

BT - Coasts and Ports 2013

A2 - Turner, I.L.

A2 - Couriel, E.D.

PB - Engineers Australia

CY - Barton, Australia

T2 - Coasts and Ports 2013: 21st Australasian Coastal and Ocean Engineering Conference and the 14th Australasian Port and Harbour Conference

Y2 - 11 September 2013 through 13 September 2013

ER -

Salim MDS, Verspecht FI, Pattiaratchi C. Influence of turbulence on sediment motion in an estuarine system. In Turner IL, Couriel ED, editors, Coasts and Ports 2013: 21st Australasian coastal and ocean engineering conference and the 14th Australasian Port and Harbour conference / National Committee for Coastal and Ocean Engineering, Engineers Australia, PIANC and IPENZ.. Barton, Australia: Engineers Australia. 2013

Influence of turbulence on sediment motion in an estuarine system

Abstract

Conference

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