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NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Engineering > Bulletin > Reports of the Faculty of Engineering, Nagasaki University > Volume 16, No. 26 >

Wave Force of Tsunami Bore on a Vertical Wall


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Title: Wave Force of Tsunami Bore on a Vertical Wall
Authors: Togashi, Hiroyoshi
Issue Date: Jan-1986
Publisher: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
Citation: 長崎大学工学部研究報告, 16(26), pp.73-80; 1986
Abstract: As regards wave force of tsunami bore acting on a structure, there are several problems left to be resolved. Above all, in a case where tsunami overflows some structure after colliding against it, the generation mechanism and the magnitude of dynamic wave force due to mean water particle velocity of tsunami bore reflected from the structure are not yet elucidated. In the paper, the structure is treated as a vertical wall model simulating a tsunami protection gate against river run-up tsunami or a land dike protecting against land run-up tsunami. Profiles of wave height and cross-sectional mean velocity of both partial clapotis bore in front of wall and transmitted surge to rear of it are experimentally obtained, by which wave force of tsunami bore on a vertical wall is evaluated and mechanism of wave force is tried to make clear. As the result, it became evident that the dynamic wave force is mainly generated by drag force and the magnitude of it is some 10~40 % of static wave force.
URI: http://hdl.handle.net/10069/24204
ISSN: 02860902
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 16, No. 26

Citable URI : http://hdl.handle.net/10069/24204

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