Open AccessMethod for Estimating Collision Force of Driftwood Accompanying Tsunami Inundation Flow
Author(s) -
Hideo Matsutomi
Publication year - 2009
Publication title -
journal of disaster research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.332
H-Index - 18
eISSN - 1883-8030
pISSN - 1881-2473
DOI - 10.20965/jdr.2009.p0435
Subject(s) - collision , acceleration , geology , flow (mathematics) , flow velocity , mechanics , geodesy , physics , computer science , classical mechanics , computer security
A practical method for estimating maximum superposed force due to simultaneous or near-simultaneous collision of pieces of driftwood accompanying tsunami inundation flow and its probability of occurrence is presented by examining inundation flow velocity (≅ collision velocity), acceleration distance within which the driftwood velocity becomes almost the same as inundation flow velocity, collision force, collision force duration, rise time from start to peak collision force, driftwood collision probability and by systematically integrating examination results.