ISIS Free
Halcrow have developed ISIS Free so that it offers an integrated 1D and 2D modelling software package. ISIS Free has all the same features as ISIS Professional and ISIS 2D which enable you to confidently apply it to smaller river modelling projects and to tackle different types of hydraulic conditions (i.e. flood risk assessments, flood mapping and design projects), and then seamlessly move to ISIS Professional or ISIS 2D should your project grow beyond the 250 1D nodes and 2,500 2D cells restriction. ISIS Free can be downloaded at no cost and used on both commercial and non-commercial projects.
