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Title: Numerical modeling of supercritical flow in the Los Angeles River : Part I : Adaptive Hydraulics numerical modeling of the 1943 physical model
Authors: McAlpin, Tate O.
Savant, Gaurav, 1979-
Zhao, Gang.
Petrie, John E.
Mouton, Madalyn C.
Keywords: Flood control
Hydraulic models
Los Angeles River (Calif.)
Riparian restoration
Stream restoration
Publisher: Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL TR-23-4
Abstract: The Los Angeles District of the US Army Corps of Engineers is assisting the City of Los Angeles with restoration efforts on the Los Angeles River. The city wishes to restore portions of the channelized river to a more natural state with riparian/vegetative green spaces for both wildlife and public recreation usage. The Los Angeles River provides an important role for the City of Los Angeles from a flood-control perspective, and functionality needs to be preserved when contemplating system modifications. This report details the development of an Adaptive Hydraulics (AdH) numerical model capable of representing this complex system consisting of both subcritical and supercritical flow regimes. Due to limited hydraulic data in the study area, an extensive model validation to observed data was not possible. To bridge the data gap, a numerical model was developed from a previously completed physical model study with extensive quantitative measurements and qualitative reports of hydraulic conditions. This approach allowed engineers to evaluate the effectiveness of the AdH model in representing this complex hydraulic system along with determining the best methodology to accurately represent the existing conditions. This study determined appropriate model parameters that will be utilized in further numerical modeling efforts to evaluate system modifications associated with restoration efforts.
Description: Technical Report
Gov't Doc #: ERDC/CHL TR-23-4
Rights: Approved for Public Release; Distribution is Unlimited
Size: 90 pages / 20.49 MB
Types of Materials: PDF
Appears in Collections:Technical Report

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