Selecting HEC-RAS Analysis Engine Version

GeoHECRAS allows the user to select which HEC-RAS version should be used for the analysis computations. The user can select the HEC-RAS analysis engine at two levels:

  • Application level
  • Project level

Selecting a HEC-RAS version at the project level defines which analysis engine is to be used for the flow computations for that project only.

Selecting the HEC-RAS version at the application level defines which analysis engine is to be used for the flow computations for every newly created project.

For example, if the user has selected HEC-RAS version 4.1.0 at the application level, every new project will use HEC-RAS version 4.1.0 for its flow computations (unless overridden using a different HEC-RAS version selected at the project level). Previously created projects will use the HEC-RAS version that was defined when they were first created.

Support is provided for the following HEC-RAS versions:

  • HEC-RAS 5.0.4 (1D or 2D, steady or unsteady flow)
  • HEC-RAS 4.1.0 (1D, steady or unsteady flow)
  • HEC-RAS 3.1.3 (1D, steady or unsteady flow)
  • HEC-RAS 3.0.1 (1D, steady flow only)

Selecting HEC-RAS Analysis Engine Version at the Application Level

Follow these steps to select the HEC-RAS analysis engine at the application level:

  1. From the ribbon menu, select File and then click Options. This will display the Options backstage page.
    Options Backstage Page - HEC-RAS analysis engine
  2. From the HEC-RAS Analysis Engine section in the Application Options panel, select from the HEC-RAS analysis engine dropdown list the desired HEC-RAS version.
    Selecting HEC-RAS analysis engine application level

This will define the HEC-RAS analysis engine to be used for all newly created projects.

Selecting HEC-RAS Analysis Engine Version at the Project Level

Follow these steps to select the HEC-RAS analysis engine at the project level:

  1. From the ribbon menu, select File and then click Options. This will display the Options backstage page.
    HEC-RAS Analysis Engine Version at the Project Level
  2. From the HEC-RAS Analysis Engine section in the Project Options panel, select from the HEC-RAS analysis engine dropdown list the desired HEC-RAS version.
    HEC-RAS Version supported by GeoHECRAS

This will define the HEC-RAS analysis engine to be used for the currently selected project. It will not affect any other projects.

Imported HEC-RAS Models

Users can import an existing HEC-RAS project in GeoHECRAS. The software automatically reads and selects the same HEC-RAS engine in the Project Options backstage page as the one used to construct the imported HEC-RAS project. However, the user can override which HEC-RAS version to use.

For example, when importing a HEC-RAS project that contains 2D flow elements, the software automatically selects HEC-RAS version 5.0.4 (or newer) from the Project Options backstage page.

 

About the Author Chris Maeder

Chris Maeder

Chris is an experienced civil engineering and software technology leader, with over 30 years industry experience. With proven expertise in global software development, he has built engineering teams that adapt quickly, focus on what’s important and, most importantly, deliver. He is a licensed professional civil engineer with extensive experience in water resource engineering. He has performed and supervised engineering projects in urban stormwater drainage, transportation and roadway drainage, storm sewer design, detention pond design, stormwater quality, green infrastructure, watershed management planning, wastewater sewers, water distribution networks, pump stations, FEMA flood studies, bridge and culvert design, bridge scour and armoring, dam failure analysis, seepage and groundwater modeling, and environmental permits.

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