skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sensitivity of Flow and Sediment Transport in Meandering Rivers to Scale Effects and Flow Rate

Abstract

Sensitivity of flow and sediment transport in a meandering river to variations in scaling and flow rate was studied. The FLUENT™ code was used for evaluating the river flow characteristics, including the mean velocity field and the Reynolds stress components, as well as for particle trajectory analysis. Particular attention was given to the sensitivity of the sedimentation patterns of different size particles in the river bend for various scales. Simulation studies were performed for both a model river and a physical river. The physical river was geometrically similar to the model river, with a scaling ratio of 1:100, but with identical Froude number. The flow and particle deposition patterns in the physical and model rivers were compared. It was shown that the mean flow quantities exhibit dynamic similarity, but the turbulence parameters and the particle sedimentation features in the physical river were different from the model. The secondary flows and particle transport patterns were also found to be sensitive to variation in the scale and flow rate.

Authors:
 [1];  [2];  [3]
  1. K.N. Toosi U. of Technology, Tehran (Iran)
  2. Clarkson Univ., Potsdam, NY (United States)
  3. National Energy Technology Laboratory, Morgantown, WV (United States)
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Org.:
USDOE - Office of Fossil Energy (FE); K.N.Toosi University of Technology, Tehran, Iran
OSTI Identifier:
933149
Report Number(s):
DOE/NETL-IR-2008-172; NETL-TPR-1865
Journal ID: ISSN 1092-8758; TRN: US200814%%715
DOE Contract Number:
None cited
Resource Type:
Journal Article
Resource Relation:
Journal Name: Environmental Engineering Science; Journal Volume: 25; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; FROUDE NUMBER; RIVERS; SEDIMENTATION; SEDIMENTS; SENSITIVITY; SIMULATION; ENVIRONMENTAL TRANSPORT; TURBULENCE; FLOW RATE; sediment transport; meandering river; multiphase flow

Citation Formats

Shams, Mehrzad, Ahmadi, Goodarz, and Smith, Duane H. Sensitivity of Flow and Sediment Transport in Meandering Rivers to Scale Effects and Flow Rate. United States: N. p., 2008. Web. doi:10.1089/ees.2007.0125.
Shams, Mehrzad, Ahmadi, Goodarz, & Smith, Duane H. Sensitivity of Flow and Sediment Transport in Meandering Rivers to Scale Effects and Flow Rate. United States. doi:10.1089/ees.2007.0125.
Shams, Mehrzad, Ahmadi, Goodarz, and Smith, Duane H. Sun . "Sensitivity of Flow and Sediment Transport in Meandering Rivers to Scale Effects and Flow Rate". United States. doi:10.1089/ees.2007.0125.
@article{osti_933149,
title = {Sensitivity of Flow and Sediment Transport in Meandering Rivers to Scale Effects and Flow Rate},
author = {Shams, Mehrzad and Ahmadi, Goodarz and Smith, Duane H.},
abstractNote = {Sensitivity of flow and sediment transport in a meandering river to variations in scaling and flow rate was studied. The FLUENT™ code was used for evaluating the river flow characteristics, including the mean velocity field and the Reynolds stress components, as well as for particle trajectory analysis. Particular attention was given to the sensitivity of the sedimentation patterns of different size particles in the river bend for various scales. Simulation studies were performed for both a model river and a physical river. The physical river was geometrically similar to the model river, with a scaling ratio of 1:100, but with identical Froude number. The flow and particle deposition patterns in the physical and model rivers were compared. It was shown that the mean flow quantities exhibit dynamic similarity, but the turbulence parameters and the particle sedimentation features in the physical river were different from the model. The secondary flows and particle transport patterns were also found to be sensitive to variation in the scale and flow rate.},
doi = {10.1089/ees.2007.0125},
journal = {Environmental Engineering Science},
number = 5,
volume = 25,
place = {United States},
year = {Sun Jun 01 00:00:00 EDT 2008},
month = {Sun Jun 01 00:00:00 EDT 2008}
}