Side-by-side entrainment and displacement of cuboids due to a tsunami-like wave

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Hajo von Häfen
  • Jacob Stolle
  • Ioan Nistor
  • Nils Goseberg

Organisationseinheiten

Externe Organisationen

  • Technische Universität Braunschweig
  • Institut national de la recherche scientifique (INRS)
  • University of Ottawa
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Details

OriginalspracheEnglisch
Aufsatznummer103819
FachzeitschriftCoastal Engineering
Jahrgang164
Frühes Online-Datum25 Nov. 2020
PublikationsstatusVeröffentlicht - März 2021

Abstract

Large tsunamis pose an immense threat to the inhabitants and infrastructure of coastal communities. The hazard related to coastal flooding events depends not only on the hydrodynamic loading itself, but also on the amount of debris entrained and displaced by the flood. To date, limited knowledge on the interaction of tsunami-induced inundation and free-floating solid objects has been developed. Thus, it is unclear how these objects propagate within the flow and which parameters govern the entrainment and displacement process. The study presented herein attempts to improve the knowledge about the fundamental physical processes leading to objects entrainment and displacement. A unique set of flume experiments was designed and conducted at the Hydraulic Laboratory of the Department of Civil Engineering at the University of Ottawa, Canada. Shipping containers modelled as cuboids at the 1:40 geometric scale were entrained by a dam-break wave with different hydrodynamic conditions and initial configurations. For the first time, insight into the dependency of relevant parameters, such as cuboids gap-ratio and lateral displacement, is presented, with a focus on the cuboids rotation as well as longitudinal and lateral displacement. The cuboids movement is also related to the velocity field in the spatio-temporal domain. This study provides insights into the fundamental physical processes characterizing the displacement of cuboids and links these processes with their initial position. The data presented also serves as a benchmark dataset, which will be useful in the future for numerical modelling efforts.

ASJC Scopus Sachgebiete

Zitieren

Side-by-side entrainment and displacement of cuboids due to a tsunami-like wave. / von Häfen, Hajo; Stolle, Jacob; Nistor, Ioan et al.
in: Coastal Engineering, Jahrgang 164, 103819, 03.2021.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

von Häfen H, Stolle J, Nistor I, Goseberg N. Side-by-side entrainment and displacement of cuboids due to a tsunami-like wave. Coastal Engineering. 2021 Mär;164:103819. Epub 2020 Nov 25. doi: 10.1016/j.coastaleng.2020.103819
von Häfen, Hajo ; Stolle, Jacob ; Nistor, Ioan et al. / Side-by-side entrainment and displacement of cuboids due to a tsunami-like wave. in: Coastal Engineering. 2021 ; Jahrgang 164.
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abstract = "Large tsunamis pose an immense threat to the inhabitants and infrastructure of coastal communities. The hazard related to coastal flooding events depends not only on the hydrodynamic loading itself, but also on the amount of debris entrained and displaced by the flood. To date, limited knowledge on the interaction of tsunami-induced inundation and free-floating solid objects has been developed. Thus, it is unclear how these objects propagate within the flow and which parameters govern the entrainment and displacement process. The study presented herein attempts to improve the knowledge about the fundamental physical processes leading to objects entrainment and displacement. A unique set of flume experiments was designed and conducted at the Hydraulic Laboratory of the Department of Civil Engineering at the University of Ottawa, Canada. Shipping containers modelled as cuboids at the 1:40 geometric scale were entrained by a dam-break wave with different hydrodynamic conditions and initial configurations. For the first time, insight into the dependency of relevant parameters, such as cuboids gap-ratio and lateral displacement, is presented, with a focus on the cuboids rotation as well as longitudinal and lateral displacement. The cuboids movement is also related to the velocity field in the spatio-temporal domain. This study provides insights into the fundamental physical processes characterizing the displacement of cuboids and links these processes with their initial position. The data presented also serves as a benchmark dataset, which will be useful in the future for numerical modelling efforts.",
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AU - Goseberg, Nils

N1 - Funding Information: The authors would like to acknowledge the support of the NSERC CGS-D Scholarship (Jacob Stolle), of the NSERC Discovery Grant [No. 210282 ] (Ioan Nistor) and of the Marie Curie International Outgoing Fellowship within the 7th European Community Framework Program [No. 622214 ] (Nils Goseberg).

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