Agenda

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8:00 – 8:30 am CDT
Morning Session
8:30 – 11:55 am CDT
Break
11:55 am – 12:25 pm CDT
Afternoon Session
12:25 – 4:20 pm CDT

Presented by
Gregory H. Nail, PhD. PE

Introductions and One Dimensional Steady Flow HEC-RAS Review
Introduction and overview                                         Basic definitions and assumptions
Conservation of energy and energy losses               Computational enhancements

Unsteady One-Dimensional Open Channel Hydraulics Background and Theory
Basic assumptions                                                        Conservation of mass
Conservation of momentum                                      Computational algorithm
Boundary and initial conditions

Two-Dimensional Open Channel Hydraulics Background and Theory
Basic assumptions                                                     Conservation of mass
Conservation of momentum                                   Boundary and initial conditions
Computational mesh and algorithm                     HEC-RAS and historical perspectives

Demonstration 1 – Building an Unsteady 1D HEC-RAS Model without GIS
HEC-RAS user interface                                        Generating the geometry
Generating the boundary and initial conditions
Initial conditions                                                     Unsteady flow computational simulation
Viewing of results

Demonstration 2 – GIS Basics
Introduction and overview
Geographic versus projected coordinate systems
Raster versus vector files                                     ArcMap versus ArcCatalog
ArcMap interface basics                                       Digital elevation model
Other files

Demonstration 3 – Building an Unsteady 1D HEC-RAS Model with GIS
RASMapper interface and the projection file
Digital elevation models and geometry creation
Generating the boundary and initial conditions
Unsteady flow computational simulation
Display and interpretation of results

Demonstration 4 – Building a Basic 2D HEC-RAS Model
RASMapper interface and 2D geometry
2D mesh generation                                             2D boundary and initial conditions
Other miscellaneous computational parameters
2D computational simulation                            Display and interpretation of results

Demonstration 5 – 2D HEC-RAS Model with Connections
RASMapper interface and mesh generation
Spatially varied Manning’s n                               Connections
2D computational simulation                              Viewing and interpreting results

Demonstration 6 – 1D/2D HEC-RAS Model and Other Considerations
RASMapper interface and combined 1D/2D mesh generation
Manning’s n and connections                             External 2D flow area boundary conditions
Other miscellaneous computational parameters
1D/2D computational simulation                      Viewing and interpreting result

 Webinar Instructions

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