ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Comparison of Models for Single-thread Streams

by Yasuyuki Shimizu, Hokkaido Development Bur, Japan,
J. Dungan Smith, Hokkaido Development Bur, Japan,
Jonathan M. Nelson, Hokkaido Development Bur, Japan,



Document Type: Proceeding Paper

Part of: Sediment Transport Modeling

Abstract:

A variety of two- and three-dimensional models for flow in curved channels and rivers have recently been made available for engineering use, and the question arises as to how sophisticated a model must be for various classes of stream flow problems. We compare the results of three different hydrostatic flow models to data from (a) a flume experiment in a 270?C circular bend with a rectangular cross-section and (b) a natural meander with bar-pool topography. Two of the models are quasi-three-dimensional and the third is fully three-dimensional. The flume experiment is that of Kikuchi, Ikeda, and Yamasaka [1988], and the field measurements are those of Dietrich and Smith [1983, 1984]. We find that the fully three-dimensional model is required to represent accurately the flow in the circular bend, whereas the simplest quasi-three-dimensional model works as well as the other two for the natural stream.

Subject Headings: Three-dimensional models | River flow | Model accuracy | Mathematical models | Hydrologic models | Hydraulic models | Channel flow

Services: Buy this book/Buy this article

 

Return to search