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Title: Free-surface turbulent flow and contaminants transport modeling

The requirement of maintaining the environmental quality and ecological balance of the surface water systems at the acceptable level both now and in the future has accelerated the development and refinement of a cost-effective engineering analysis and design tool--Computational Modeling. This paper presents the progress of an on-going study to develop and refine computational models to simulate the free-surface turbulent flows and contaminants transport phenomena. New developments include: the efficient Element Method, which adopts the advantages of both Finite Element and Finite Difference; the most effective up-winding and/or characteristic-path integration; the prescribed solution forcing to conduct modeling verification studies of this correctness and capabilities in prediction of nonlinear effects; among others. The newly refined computational models have been applied to simulate unsteady, three-dimensional, turbulent, free-surface flows and pollutant transport in lakes, reservoirs, streams, rivers, estuaries, and coastal waters with natural (highly-irregular) geometric configurations. They have been verified in some cases to be able to predict basic physical characteristics of the free surface flows including boundary layer separations and re-attachments, wake flow and vortex shedding, corner separation and re-circulation, etc. They are also capable of simulating the transport of solute substances, solid particles and heat energy in these waters. Results canmore » be displayed in stationary (snapshots) color graphics and in animation (motion pictures) recorded on video cassettes.« less
Authors:
 [1]
  1. Univ. of Mississippi, University, MS (United States). Center for Computational Hydroscience and Engineering
Publication Date:
OSTI Identifier:
110045
Report Number(s):
CONF-940659-
ISBN 0-7918-1369-X; TRN: IM9543%%347
Resource Type:
Book
Resource Relation:
Conference: 1994 American Society of Mechanical Engineers (ASME) Fluids Engineering Division summer meeting, Lake Tahoe, NV (United States), 19-23 Jun 1994; Other Information: PBD: 1994; Related Information: Is Part Of Industrial and environmental applications of fluid mechanics 1994. FED Volume 186; Morrow, T.B.; Horii, K.; Elger, D.F.; Marshall, L.R. [eds.]; PB: 203 p.
Publisher:
American Society of Mechanical Engineers, New York, NY (United States)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; LAKES; ENVIRONMENTAL TRANSPORT; RIVERS; ESTUARIES; COASTAL WATERS; FLOW MODELS; WASTE WATER; WASTE DISPOSAL; WATER QUALITY; COMPUTERIZED SIMULATION; C CODES; VALIDATION; EXPERIMENTAL DATA