January 2009
ISIS, one of the leading software packages for river modelling, now boasts significant increases in the speed of model run times.
ISIS is used throughout the world on flood forecasting, flood alleviation scheme designs, flood risk mapping, flood risk assessments and catchment management planning projects. It provides engineers and managers with a set of flexible and cost effective tools so that they can make decisions to proactively manage our environment.
ISIS v3.1 delivers considerably faster run times and provides users with a number of major improvements and new features - including grid manipulation, conveyance plotting, Open-MI compliance and better visualisation of diagnostic and structure information.
Testing ISIS v3.1 on 15 large ISIS models produced a speed-up factor of between 2 and 11 times (average of 3.7) compared with the previous version. In addition, the new version boasts, manhole unit to efficiently link pipes and culverts to surface flooding; surcharged bridge switching to orifice mode flow; Open-MI compliance enabling ISIS to dynamically link to other Open-MI compliant software; runoff factor for direct rainfall on flood cells; plotting of conveyance curves and 2D model building in ISIS Mapper.
Halcrow will also be releasing ISIS 2D in late March 2009.