Human instability in flood flows.

Jonkman, S. N. and Penning-Rowsell, Edmund C. (2008) Human instability in flood flows. Journal of the American Water Resources Association, 44 (5). pp. 1208-1218. ISSN 1093-474X

Full text is not in this repository.

Abstract

Loss of human stability in flood flows and consequent drowning are a high personal hazard. In this paper, we review past experimental work on human instability. The results of new experiments by the Flood Hazard Research Centre (FHRC) are also reported. These new results show that low depth/high velocity flood waters are more dangerous than suggested based on previous experimental work. It is discussed how human instability can be related to two physical mechanisms: moment instability (toppling) and friction instability (sliding). Comparison of the test results with these physical mechanisms suggests that the occurrence of instability in the tests by FHRC is related to friction instability. This mechanism appears to occur earlier than moment instability for the combination of shallow depth and high flow velocity. Those concerned to identify locations where high flood flows could be a threat to human life need to modify their hazard assessments accordingly.

Item Type:Article
Keywords (uncontrolled):flooding • hydrodynamics • human instability • loss of life • risk assessment
Research Areas:Middlesex University Schools and Centres > School of Science and Technology > Natural Sciences
Citations on ISI Web of Science:6
ID Code:4968
Useful Links:
Deposited On:16 Apr 2010 14:06
Last Modified:13 May 2014 15:50

Repository staff only: item control page

Full text downloads (NB count will be zero if no full text documents are attached to the record)

Downloads per month over the past year