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|Title:||An assessment of reservoir mixing processes|
|Authors:||Ford, Thornton, Norton, and Associates, Ltd.|
Environmental and Water Quality Operational Studies (U.S.)
Ford, Dennis E.
Johnson, Linda S.
|Keywords:||Environmental impact analysis|
|Publisher:||Environmental Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
Abstract: Since mixing and the resultant hydrothermal regime are dominant factors in determining what takes place chemically and biologically in a reservoir, techniques for predicting the characteristics of the major mixing mechanisms that occur in reservoirs can help the US Army Corps of Engineers (CE) regulate the quality of reservoir and release waters. This report provides a literature review of reservoir internal mixing processes, in which general transport processes, reservoir mixing processes and their effect on water quality, and one-dimensional predictive techniques and computer algorithms are presented and analyzed. The historical development of the recommended predictive techniques, including the assumptions, limitations, and advantages of the techniques used in the development, is also documented. The recommended one-dimensional mixing algorithm is generalized with respect to CE reservoirs and is not constrained by extensive data requirements nor limited in the mixing processes considered. The algorithm includes all major mixing processes in order to predict changes in the reservoir's mixing regime resulting from changes in hydrometeorological conditions and project operation. The recommended algorithm was used to simulate the thermal structure of over 15 reservoirs and lakes of varying geographical locations, size, hydrometeorological regime, and operational configurations. The recommendations for the mixing algorithm are the opinions of the authors, and all phases of it are not necessarily incorporated in the current one-dimensional CE reservoir model (CE-QUAL-R1). NOTE: This file is large. Allow your browser several minutes to download the file.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Technical Report|
Files in This Item:
|TR-E-86-7.pdf||26.28 MB||Adobe PDF|