Laboratory Model Studies of Flood Wave Propagation

by Nadira Kabir, Texas Water Commission, Austin, TX, USA,
John F. Orsborn, Texas Water Commission, Austin, TX, USA,

Document Type: Proceeding Paper

Part of: Water Forum '86: World Water Issues in Evolution


Laboratory investigations of unsteady free-surface flow with various combinations of channel and flood conditions were performed. A 72 ft (21. 9 m) long tilting flume was modified to make a physical model of stream channels of various shapes and sizes with its flood plains as a storage area. The experiments provided a series of carefully generated transient hydrographs and water surface profiles for various input conditions. For each experiment, the transient depth hydrographs were obtained at five locations along the length of the channel. Results of these laboratory experiments were used to verify the performance of a numerical model developed to investigate the significance of controlling parameters on the flood wave propagation.

Subject Headings: Hydrologic models | Stream channels | Wave propagation | Water waves | Hydrographs | Hydraulic models | Water storage | Laboratory tests

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