Title

Sensitivities of channel geometry compared to modeling assumptions in dam failure analysis

Advisor

Martin, James

Committee Member

Copeland, Ronald

Committee Member

McAnally, William

Date of Degree

1-1-2010

Original embargo terms

MSU Only Indefinitely

Document Type

Graduate Thesis - Open Access

Major

Civil and Environmental Engineering

Degree Name

Master of Science

College

James Worth Bagley College of Engineering

Department

Department of Civil and Environmental Engineering

Abstract

This research includes a sensitivity analysis of channel geometry and model assumptions in 1 dimensional (1D) dam break analysis. The specific modeling assumptions that are analyzed include, breach development time, breach width, and breach side-slopes. The question always arises when doing 1D dam break modeling of how detailed does the geometry data need to be to answer the subject question within an acceptable tolerance. LIDAR data and bathymetric data used for channel characteristic add significant detail to the model geometry as opposed to using course gridded data such as the USGS 10 meter Digital Elevation Models (DEMs). However, as geometry detail increases so does model development time, model run time, and cost to retrieve data. This research analyzes the level of error introduced in model results from accuracy of channel geometry as compared to the level of error introduced from assumption made in breach characteristic.

URI

https://hdl.handle.net/11668/17445

Comments

Hydraulic Modeling

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