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These variables include the system of units (English or SI) and the contraction and expansion coefficients.

Finally, the project also specifies the default variables.

The run and output file extension numbers will always coincide with the extension number of the plan that the program used to create the files. Note: # refers to an extension number from 01 to 99.Īs the file types are created, the program will number the extensions in consecutive order starting at 01. For each file, the table lists the file type, the file extension, and the method of creation of the files (by the user or by the program). The files that constitute the project are listed in the table below. Bridge Project - Example 7." This will open the project and activate the following files:Įxample 7 - Multiple Plans.zip Elements of a ProjectĪ project is comprised of all of the files that are used to develop a model, as well as a list of default variables that are used for the analysis. From the "Applications Guide\Example 7 – Multiple Plans" subdirectory, select the project labeled "Napa Cr. Go to the directory in which you have installed the HEC-RAS example data sets. To review the data files for this example, from the main HEC-RAS window, select File and then Open Project. Specifically, this example will illustrate the use of multiple plans by analyzing the existing geometric conditions of the river reach and then analyzing a proposed change to the geometry. The modeler is referred to Chapter 5 of the User's Manual for a further discussion on working with projects and a discussion of the files that comprise a plan. Initially, this example will briefly discuss the elements of a project and the elements of a plan. Therefore, each plan can represent a development stage or analysis phase of the project. Each plan associates specific files of the project to be grouped together. A project is divided into one or more plans.

Each river hydraulics application constitutes a project, which is a collection of files that are associated with the application. This example will demonstrate the use of working with multiple plans.