SECONDARY CIRCULATION IN NATURAL STREAMS.

Misganaw Demissie, Ta Wei Soong, Nani G. Bhowmik, William P. Fitzpatrick, W. Hall, C. Maxwell

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Secondary circulation which is sometimes referred to as secondary flow, secondary current or transverse current is an important phenomenon in natural streams and plays an important role in many natural processes in streams such as stream channel meander, bank erosion, bed scour, resuspension, and movement of sediment. Secondary circulation is that component of flow which is not in the main flow direction and is small as compared to the main flow velocity. A computerized data collection system for secondary circulation data acquisition in natural streams was developed and utilized in the field. The system includes an electromagnetic current meter, a micro-computer, an interface between the computer and the current meter, and a specially designed supporting structure. A mathematical model for secondary circulation based on an existing model has been developed and tested against the data collected in the field.

Original languageEnglish (US)
Title of host publicationResearch Report - University of Illinois at Urbana-Champaign, Water Resources Center
Edition200
StatePublished - Jul 1986
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering

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