Laserfiche WebLink
<br />Chapter 3 Workin,l1 With HEC-RAS - An Overview <br /> <br />CHAPTER 3 <br /> <br />Working With HEC-RAS - An Overview <br /> <br />HEC-RAS is an integrated package of hydraulic analysis programs, in which <br />the user interacts with the system through the use of a Graphical User <br />Interface (GUI). The system is capable of perfonning Steady Flow water <br />surface profile calculations, and will include Unsteady Flow, Sediment <br />Transport, and several hydraulic design computations in the future. <br /> <br />In HEC-RAS tenninology, a Project is a set of data files associated with a <br />particular river system. The modeler can perfonn any or all of the various <br />types of analyses, included in the HEC-RAS package, as part of the project <br />The data files for a project are categorized as follows: plan data, geometric <br />data, steady flow data, unsteady flow data, and sediment data. <br /> <br />During the course of a study the modeler may want to fonnulate several <br />different Plans. Each plan represents a specific set of geometric data and <br />flow/sediment data. Once the basic data are entered into the HEC-RAS, the <br />modeler can easily fonnulate new plans. After simulations are made for the <br />various plans, the results can be compared in both tabular and graphical fonn. <br /> <br />This chapter provides an overview of how a study is perfonned with the HEC- <br />RAS software. Special topics on how to import HEC-2 data and how to use <br />on-line help are also covered. <br /> <br />Contents <br /> <br />. Starting HEC-RAS <br /> <br />. Steps in Developing a Hydraulic Model With HEC-RAS <br /> <br />. Importing HEC-2 Data <br /> <br />. Getting and Using Help <br /> <br />3-1 <br />