This tutorial is designed for users with no prior knowledge of the Hec-Ras software and is provided free of charge to help you enter the world of hydraulic modeling and explore the functionalities of the most widely used software for 1D and 2D modeling, trusted by universities, leading companies in the field, and public institutions.

With Hec-Ras 2D in 4 Simple Steps, you can tackle the entire process of building a connected 1D-2D model, starting from hydrological and topographical data and addressing issues related to incorporating the model’s main components.

Finally, you will learn how to view and manipulate both 1D results in the main HEC-RAS software environment and 2D outputs in RAS mapper along with tips on how to best interrogate and display the output data.

The advantage of using HEC-RAS over other 2D modeling programs is that HEC-RAS uses a sub-grid modeling approach. This means that HEC-RAS uses the underlying terrain to create hydraulic properties tables for cells and cell faces. Other 2D modeling programs assign each cell a flat bottom or single depth.