Two-Dimensional Hydraulic Models: Difference between revisions
From ASDSO Dam Safety Toolbox
(Created page with "__NOTOC__ ---- <!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed --> One-dimensional models include mathematical simplifications related to the assumption that flood depth remains uniform over the entire cross section. This assumption is not accurate for wide and flat floodplain areas. Two-dimensional models use full dynamic or simplified forms of one- and two-dimensional shallow water equations to solve both one-dimensional c...") |
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[[Category:Hydraulics]] | |||
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One-dimensional models include mathematical simplifications related to the assumption that flood depth remains uniform over the entire cross section. This assumption is not accurate for wide and flat floodplain areas. Two-dimensional models use full dynamic or simplified forms of one- and two-dimensional shallow water equations to solve both one-dimensional channel flow and two-dimensional overland flow and are more appropriate for flat and wide floodplain areas”. <ref name ="FEMA">[[Federal Guidelines for Inundation Mapping of Flood Risks Associated with Dam Incidents and Failures (FEMA P-946) | | {{Picture | ||
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A two-dimensional hydraulic model. | |||
(Image Source: [https://www.usgs.gov/media/images/two-dimensional-hydraulic-model USGS, 2021]) | |||
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"One-dimensional models include mathematical simplifications related to the assumption that flood depth remains uniform over the entire cross section. This assumption is not accurate for wide and flat [[floodplain]] areas. Two-dimensional models use full dynamic or simplified forms of one- and two-dimensional shallow water equations to solve both one-dimensional channel flow and two-dimensional overland flow and are more appropriate for flat and wide floodplain areas”. <ref name ="FEMA">[[Federal Guidelines for Inundation Mapping of Flood Risks Associated with Dam Incidents and Failures (FEMA P-946) | Federal Guidelines for Inundation Mapping of Flood Risks Associated with Dam Incidents and Failures (FEMA P-946), FEMA, 2013]]</ref> | |||
==Best Practices Resources== | ==Best Practices Resources== | ||
{{Document Icon}} | {{Document Icon}} [[Federal Guidelines for Inundation Mapping of Flood Risks Associated with Dam Incidents and Failures (FEMA P-946) | Federal Guidelines for Inundation Mapping of Flood Risks Associated with Dam Incidents and Failures (FEMA P-946), FEMA]] | ||
==Trainings== | ==Trainings== | ||
{{Video Icon}} | {{Video Icon}} [[On-Demand Webinar: HEC-RAS 2D Modeling]] | ||
{{Video Icon}} [[On-Demand Webinar: Intro to the Application of 2D Hydraulic Modeling for Dam and Levee Safety]] | |||
{{Website Icon}} [[Technical Seminar: HEC-RAS 2D]] | |||
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Latest revision as of 20:57, 21 July 2023
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| A two-dimensional hydraulic model.
(Image Source: USGS, 2021) |
"One-dimensional models include mathematical simplifications related to the assumption that flood depth remains uniform over the entire cross section. This assumption is not accurate for wide and flat floodplain areas. Two-dimensional models use full dynamic or simplified forms of one- and two-dimensional shallow water equations to solve both one-dimensional channel flow and two-dimensional overland flow and are more appropriate for flat and wide floodplain areas”. [1]
Best Practices Resources
Trainings
On-Demand Webinar: HEC-RAS 2D Modeling
On-Demand Webinar: Intro to the Application of 2D Hydraulic Modeling for Dam and Levee Safety
Citations:
Revision ID: 7426
Revision Date: 07/21/2023