TY  - JOUR
PY  - 2023//
TI  - Drift of a drowning victim in rivers: conceptualization and global sensitivity analysis under idealized flow conditions
JO  - Water resources research
A1  - Delhez, Clément
A1  - Rivière, Nicolas
A1  - Erpicum, Sébastien
A1  - Pirotton, Michel
A1  - Archambeau, Pierre
A1  - Arnst, Maarten
A1  - Bierens, Joost J. L. M.
A1  - Dewals, Benjamin
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - We present a conceptual model of the drift of a drowning victim in a river, accounting for the mechanical effects of body decomposition. The model was tested under idealized flow conditions (uniform flow) and a global sensitivity analysis was performed. Uncertainties in body morphology, flow-body interaction parameters (e.g., drag coefficient) and drowning characteristics were considered. The results emphasize the importance of predicting the body vertical position since it considerably influences the streamwise body drift velocity, due to the significant difference between near-surface and near-bed velocity. The results also highlight the value of testimonies providing information on body mass and height, as decreasing uncertainty on these input data strongly reduces uncertainties on the predicted body streamwise position. Next step of the research will consist in coupling the model with an Eulerian multidimensional model of river hydrodynamics.<p />  <p>Language: en</p>
LA  - en
SN  - 0043-1397
UR  - http://dx.doi.org/10.1029/2022WR034358
ID  - ref1
ER  -