Tsunami Inundation Modeling in Constructed Environments: A Physical and Numerical Comparison of Free-Surface Elevation, Velocity, and Momentum Flux Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/n009w305c

This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier and can be found at:  http://www.journals.elsevier.com/coastal-engineering/.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • A laboratory benchmark test for tsunami inundation through an urban waterfront including free surface elevation, velocity, and specific momentum flux is presented and compared with a numerical model (COULWAVE). The physical model was a 1:50 scale idealization of the town Seaside, Oregon, designed to observe the complex tsunami flow around the macro-roughness such as buildings idealized as impermeable, rectangular blocks. Free surface elevation and velocity time series were measured and analyzed at 31 points along 4 transects. Optical measurements of the leading bore front were used in conjunction with the in-situ velocity and free surface measurements to estimate the time-dependent specific momentum flux at each location. The maximum free surface elevation and specific momentum flux sharply decreased from the shoreline to the landward measurement locations, while the cross-shore velocity slowly decreased linearly. The experimental results show that the maximum specific momentum flux is overestimated by 60 to 260%, if it is calculated using the each maximum values of the free surface elevation and cross-shore velocity. Comparisons show that the numerical model is in good agreement with the physical model at most locations when tuned to a friction factor of 0.005. When the friction factor decreased by a factor of 10 (from 0.01 to 0.001), the average maximum free surface elevation increased 15%, and the average cross-shore velocity and specific momentum flux increased 95 and 208%, respectively. This highlights the importance of comparing velocity in the validation and verification process of numerical models of tsunami inundation.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Park, H., Cox, D.T., Lynett, P.J., Wiebe, D.M., & Shin, S. (2013). Tsunami inundation modeling in constructed environments: A physical and numerical comparison of free-surface elevation, velocity, and momentum flux. Coastal Engineering, 79, 9-21. doi:10.1016/j.coastaleng.2013.04.002
Academic Affiliation
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2013-09-17T23:04:17Z No. of bitstreams: 1 CoxDanielCivilConstructionEngineeringTsunamiInundationModeling.pdf: 2064656 bytes, checksum: d0468a9af5832cc38ab2653f62cb8bdc (MD5)
  • description.provenance : Approved for entry into archive by Deanne Bruner(deanne.bruner@oregonstate.edu) on 2013-09-17T23:05:24Z (GMT) No. of bitstreams: 1 CoxDanielCivilConstructionEngineeringTsunamiInundationModeling.pdf: 2064656 bytes, checksum: d0468a9af5832cc38ab2653f62cb8bdc (MD5)
  • description.provenance : Made available in DSpace on 2013-09-17T23:05:24Z (GMT). No. of bitstreams: 1 CoxDanielCivilConstructionEngineeringTsunamiInundationModeling.pdf: 2064656 bytes, checksum: d0468a9af5832cc38ab2653f62cb8bdc (MD5) Previous issue date: 2013-09

Relationships

In Administrative Set:
Last modified: 07/13/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items