Abstract:
Hydrodynamic flow modeling is carried out using a coupled 1D and 2D
hydrodynamic flow model in northern India where an industrial plant is proposed. Two
flooding scenarios, one considering the flooding source at regional/catchment level and
another considering all flooding sources at local level have been simulated. For simulating
flooding scenario due to flooding of the upstream catchment, the probable maximum flood
(PMF) in the main river is routed and its flooding impact at the plant site is studied, while
at the local level flooding, in addition to PMF in the main river, the probable maximum
precipitation at the plant site and breaches in the canals near the plant site have been
considered. The flood extent, depth, level, duration and maximum flow velocity have been
computed. Three parameters namely the flood depth, cross product of flood depth and
velocity and flood duration have been used for assessing the flood hazard, and a flood
hazard classification scheme has been proposed. Flood hazard assessment for flooding due
to upstream catchment and study on local scale facilitates determination of plinth level for
the plant site and helps in identifying the flood protection measures.
