Time-dependent linearisation of bottom friction for storm surge modelling in the Wadden Sea

Pieter C. Roos, Chris Pitzalis, Giordano Lipari, Koen R.G. Reef, Suzanne J.M.H. Hulscher

Research output: Contribution to conferenceAbstractOther research output

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Abstract

The nonlinear nature of bottom friction in shallow flow complicates its analysis, particularly in idealised models. For tidal flows, Lorentz’ linearisation has been widely applied, using an energy criterion to specify the friction coefficient. Here we propose an extension of this approach to storm surges, leading to a friction coefficient that may gradually vary over a storm event. The derivation is provided along with first results for a single channel.
Original languageEnglish
Number of pages3
Publication statusPublished - 28 Jun 2017
Event4th International Symposium on Shallow Flows, ISSF 2017 - Eindhoven University of Technology, Eindhoven, Netherlands
Duration: 26 Jun 201728 Jun 2017
Conference number: 4
http://issf2017.tue.nl/
http://issf2017.tue.nl/program/programme_ISSF.pdf

Conference

Conference4th International Symposium on Shallow Flows, ISSF 2017
Abbreviated titleISSF 2017
CountryNetherlands
CityEindhoven
Period26/06/1728/06/17
Internet address

Fingerprint

bottom friction
storm surge
friction
modeling
energy
Wadden Sea
analysis

Keywords

  • storm surges
  • idealised modelling
  • bottom friction
  • Lorentz’ linearisation

Cite this

Roos, P. C., Pitzalis, C., Lipari, G., Reef, K. R. G., & Hulscher, S. J. M. H. (2017). Time-dependent linearisation of bottom friction for storm surge modelling in the Wadden Sea. Abstract from 4th International Symposium on Shallow Flows, ISSF 2017, Eindhoven, Netherlands.
Roos, Pieter C. ; Pitzalis, Chris ; Lipari, Giordano ; Reef, Koen R.G. ; Hulscher, Suzanne J.M.H. / Time-dependent linearisation of bottom friction for storm surge modelling in the Wadden Sea. Abstract from 4th International Symposium on Shallow Flows, ISSF 2017, Eindhoven, Netherlands.3 p.
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abstract = "The nonlinear nature of bottom friction in shallow flow complicates its analysis, particularly in idealised models. For tidal flows, Lorentz’ linearisation has been widely applied, using an energy criterion to specify the friction coefficient. Here we propose an extension of this approach to storm surges, leading to a friction coefficient that may gradually vary over a storm event. The derivation is provided along with first results for a single channel.",
keywords = "storm surges, idealised modelling, bottom friction, Lorentz’ linearisation",
author = "Roos, {Pieter C.} and Chris Pitzalis and Giordano Lipari and Reef, {Koen R.G.} and Hulscher, {Suzanne J.M.H.}",
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note = "4th International Symposium on Shallow Flows, ISSF 2017, ISSF 2017 ; Conference date: 26-06-2017 Through 28-06-2017",
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Roos, PC, Pitzalis, C, Lipari, G, Reef, KRG & Hulscher, SJMH 2017, 'Time-dependent linearisation of bottom friction for storm surge modelling in the Wadden Sea' 4th International Symposium on Shallow Flows, ISSF 2017, Eindhoven, Netherlands, 26/06/17 - 28/06/17, .

Time-dependent linearisation of bottom friction for storm surge modelling in the Wadden Sea. / Roos, Pieter C.; Pitzalis, Chris; Lipari, Giordano; Reef, Koen R.G.; Hulscher, Suzanne J.M.H.

2017. Abstract from 4th International Symposium on Shallow Flows, ISSF 2017, Eindhoven, Netherlands.

Research output: Contribution to conferenceAbstractOther research output

TY - CONF

T1 - Time-dependent linearisation of bottom friction for storm surge modelling in the Wadden Sea

AU - Roos, Pieter C.

AU - Pitzalis, Chris

AU - Lipari, Giordano

AU - Reef, Koen R.G.

AU - Hulscher, Suzanne J.M.H.

PY - 2017/6/28

Y1 - 2017/6/28

N2 - The nonlinear nature of bottom friction in shallow flow complicates its analysis, particularly in idealised models. For tidal flows, Lorentz’ linearisation has been widely applied, using an energy criterion to specify the friction coefficient. Here we propose an extension of this approach to storm surges, leading to a friction coefficient that may gradually vary over a storm event. The derivation is provided along with first results for a single channel.

AB - The nonlinear nature of bottom friction in shallow flow complicates its analysis, particularly in idealised models. For tidal flows, Lorentz’ linearisation has been widely applied, using an energy criterion to specify the friction coefficient. Here we propose an extension of this approach to storm surges, leading to a friction coefficient that may gradually vary over a storm event. The derivation is provided along with first results for a single channel.

KW - storm surges

KW - idealised modelling

KW - bottom friction

KW - Lorentz’ linearisation

M3 - Abstract

ER -

Roos PC, Pitzalis C, Lipari G, Reef KRG, Hulscher SJMH. Time-dependent linearisation of bottom friction for storm surge modelling in the Wadden Sea. 2017. Abstract from 4th International Symposium on Shallow Flows, ISSF 2017, Eindhoven, Netherlands.