A possible mechanism of destruction of coastal trees by tsunamis : a hydrodynamic study on effects of coastal steep hills
In this paper, experimental and numerical studies are presented to understand why some trees close to the shoreline survived the 25 October 2010 Mentawai tsunami, while trees further inland before a steep coastal hill were all destroyed. A set of experiments were performed in a wave flume to measure...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/96843 http://hdl.handle.net/10220/11656 |
| _version_ | 1826128866262908928 |
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| author | Huang, Zhenhua Wu, Tso-Ren Chen, Tzu-Yu Sim, Shawn Y. |
| author_facet | Huang, Zhenhua Wu, Tso-Ren Chen, Tzu-Yu Sim, Shawn Y. |
| author_sort | Huang, Zhenhua |
| collection | NTU |
| description | In this paper, experimental and numerical studies are presented to understand why some trees close to the shoreline survived the 25 October 2010 Mentawai tsunami, while trees further inland before a steep coastal hill were all destroyed. A set of experiments were performed in a wave flume to measure the flow depths and forces acting on tree models, and the experimental results were used to verify our numerical model. Cross-shore distribution of the flow depth and the flow-induced bending moment acting on tree trunks were studied using our numerical model. Our results show that the presence of the steep hill increased both the flow depth and the bending moment acting on trees close to the steep hill, and might be an important mechanism responsible for the destruction of coastal trees. |
| first_indexed | 2024-10-01T07:31:52Z |
| format | Journal Article |
| id | ntu-10356/96843 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:31:52Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/968432020-03-07T11:43:37Z A possible mechanism of destruction of coastal trees by tsunamis : a hydrodynamic study on effects of coastal steep hills Huang, Zhenhua Wu, Tso-Ren Chen, Tzu-Yu Sim, Shawn Y. In this paper, experimental and numerical studies are presented to understand why some trees close to the shoreline survived the 25 October 2010 Mentawai tsunami, while trees further inland before a steep coastal hill were all destroyed. A set of experiments were performed in a wave flume to measure the flow depths and forces acting on tree models, and the experimental results were used to verify our numerical model. Cross-shore distribution of the flow depth and the flow-induced bending moment acting on tree trunks were studied using our numerical model. Our results show that the presence of the steep hill increased both the flow depth and the bending moment acting on trees close to the steep hill, and might be an important mechanism responsible for the destruction of coastal trees. 2013-07-17T02:55:26Z 2019-12-06T19:35:38Z 2013-07-17T02:55:26Z 2019-12-06T19:35:38Z 2012 2012 Journal Article Huang, Z., Wu, T.-R., Chen, T.-Y., & Sim, S. Y. (2013). A possible mechanism of destruction of coastal trees by tsunamis: A hydrodynamic study on effects of coastal steep hills. Journal of Hydro-environment Research, 7(2), 113-123. 1570-6443 https://hdl.handle.net/10356/96843 http://hdl.handle.net/10220/11656 10.1016/j.jher.2012.06.004 en Journal of hydro-environment research © 2012 International Association for Hydro-environment Engineering and Research, Asia Pacific Division. |
| spellingShingle | Huang, Zhenhua Wu, Tso-Ren Chen, Tzu-Yu Sim, Shawn Y. A possible mechanism of destruction of coastal trees by tsunamis : a hydrodynamic study on effects of coastal steep hills |
| title | A possible mechanism of destruction of coastal trees by tsunamis : a hydrodynamic study on effects of coastal steep hills |
| title_full | A possible mechanism of destruction of coastal trees by tsunamis : a hydrodynamic study on effects of coastal steep hills |
| title_fullStr | A possible mechanism of destruction of coastal trees by tsunamis : a hydrodynamic study on effects of coastal steep hills |
| title_full_unstemmed | A possible mechanism of destruction of coastal trees by tsunamis : a hydrodynamic study on effects of coastal steep hills |
| title_short | A possible mechanism of destruction of coastal trees by tsunamis : a hydrodynamic study on effects of coastal steep hills |
| title_sort | possible mechanism of destruction of coastal trees by tsunamis a hydrodynamic study on effects of coastal steep hills |
| url | https://hdl.handle.net/10356/96843 http://hdl.handle.net/10220/11656 |
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