NDLI: Tsunami forcing by a low Froude number landslide

Content Provider	Springer Nature Link
Author	Whittaker, Colin kes, Roger Davidson, Mark
Copyright Year	2015
Abstract	The waves generated by a submarine landslide, of great concern to coastal communities, exhibit strong dependence on the landslide motion along the sea floor. A series of two-dimensional physical experiments investigate the waves generated by a solid block landslide moving along a horizontal boundary, allowing measurement of both onshore- and offshore-propagating waves using the laser-induced fluorescence technique. This technique provides high-quality free surface measurements over the entire length of the experimental flume, and hence a data set that can be used to validate numerical models for this idealised scenario. The landslide motion is provided by a mechanical system, allowing testing of a range of landslide accelerations and terminal velocities. The landslide Froude number governs the overall behaviour of the wave field. At lower Froude numbers, the waves are almost entirely generated by the landslide acceleration and deceleration, and the offshore- and onshore-propagating wave groups contain approximately equal energy. Interactions between the landslide and the offshore-propagating waves become more important as the Froude number increases. Two inviscid-irrotational models demonstrate the importance of dispersive effects for tsunamis generated by a submarine landslide, and correctly predict the behaviour of the entire wave field at low Froude numbers. The predictions in the vicinity of the landslide worsen with increasing Froude number, due to the linear free surface conditions used by the models. Lower Froude numbers appear to be more representative of previous sloping-boundary experimental geometries, although rigid block landslides still represent an idealisation of a field scenario.
Starting Page	1215
Ending Page	1239
Page Count	25
File Format	PDF
ISSN	15677419
Journal	Environmental Fluid Mechanics
Volume Number	15
Issue Number	6
e-ISSN	15731510
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-05-07
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Tsunami Landslide Laser-induced fluorescence (LIF) Particle tracking velocimetry (PTV) Inviscid-irrotational flow Earth Sciences Environmental Physics Hydrology/Water Resources Mechanics Hydrogeology Oceanography
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Tsunami generation by submarine landslides: comparison of physical and numerical models

Froude scaling limitations in modeling of turbidity currents

Velocity measurements in inclined negatively buoyant jets

A study of flow fields in step-down street canyons

Effect of upstream flow regime on street canyon flow mean turbulence statistics

Turbulence suppression by suspended sediment within a geophysical flow

Study of flow formed by three coplanar impinging pipe jets at inclination angles of 30° and 45°

Experimental and large eddy simulation study of the flow developed by a sequence of lateral obstacles

Characterization of turbulence statistics on the non-aerated skimming flow over stepped spillways: a numerical study

Tsunami forcing by a low Froude number landslide

Similar Documents

Tsunami generation by submarine landslides: comparison of physical and numerical models

Froude scaling limitations in modeling of turbidity currents

Velocity measurements in inclined negatively buoyant jets

A study of flow fields in step-down street canyons

Effect of upstream flow regime on street canyon flow mean turbulence statistics

Turbulence suppression by suspended sediment within a geophysical flow

Study of flow formed by three coplanar impinging pipe jets at inclination angles of 30° and 45°

Experimental and large eddy simulation study of the flow developed by a sequence of lateral obstacles

Characterization of turbulence statistics on the non-aerated skimming flow over stepped spillways: a numerical study

Tsunami forcing by a low Froude number landslide