We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Simplified formulae for designing coastal forest against tsunami run-up: one-dimensional approach.
- Authors
Thuy, Nguyen Ba; Nandasena, N. A. K.; Dang, Vu Hai; Tanaka, Norio
- Abstract
In the present study, laboratory experiments were conducted to validate the applicability of a numerical model based on one-dimensional nonlinear long-wave equations. The model includes drag and inertia resistance of trees to tsunami flow and porosity between trees and a simplified forest in a wave channel. It was confirmed that the water surface elevation and flow velocity by the numerical simulations agree well with the experimental results for various forest conditions of width and tree density. Further, the numerical model was applied to prototype conditions of a coastal forest of <italic>Pandanus odoratissimus</italic> to investigate the effects of forest conditions (width and tree density) and incident tsunami conditions (period and height) on run-up height and potential tsunami force. The modeling results were represented in curve-fit equations with the aim of providing simplified formulae for designing coastal forest against tsunamis. The run-up height and potential tsunami forces calculated by the curve-fit formulae and the numerical model agreed within ± 10% error.
- Subjects
COASTAL forests; HALA tree; TSUNAMI resistant design; NUMERICAL analysis; MATHEMATICAL models of flow velocity
- Publication
Natural Hazards, 2018, Vol 92, Issue 1, p327
- ISSN
0921-030X
- Publication type
Article
- DOI
10.1007/s11069-018-3197-z