I'm aiming to build an ISIS (v3.6) - TUFLOW (v2012-05-AB or above) on a I7 core 4 processor computer to represent a 70km long watercourse.
The flood events to model are expected to be 48hr long.
Peak flows will range between 5500m3/s (10yr event) and 10,000yr (1000yr event).
Bed slope is 0.06m/km
Tidal influence expected.
The 1000yr floodplain/wet cells are expected to represent a total area of approx 165km2.
A consistent grid cell size will be applied over the modelled catchment.
The client wants to model to run just under 12hr... can anyone advise on what grid cell size needs to be applied to the 2D domain?
Whilst I appreciate computer performances keep changing, is anyone aware of a rule of thumb or past studies allowing derivation of estimated model run time from catchment size, peak flow values, etc...?