Title

3D Numerical Temperature Model Development and Calibration for Lakes and Reservoirs: A Case Study

Published In

World Environmental and Water Resources Congress

Document Type

Citation

Publication Date

5-1-2017

Abstract

A 3D hydrodynamic and temperature numerical model was developed and calibrated for Lake Chaplain, Washington, USA. The governing equations are the continuity equation, free surface equation, momentum equation, and conservation equation of transport. The model employs the semi-implicit finite difference scheme to solve the governing equations and higher order schemes (QUICK and Quickest) for mass and heat transport in contrast to simpler but more diffusive first order UPWIND scheme. A unique feature of the 3D numerical solution of the model free surface equation is that the solution uses a tri-diagonal matrix form rather than a more common pentadiagonal matrix. The surface heat exchange and turbulence structure were based on the CE-QUAL-W2 model. Comparisons in water surface levels and temperature vertical profiles between model predictions and data were performed using different advective transport schemes. The model matched data with good error statistics.

DOI

10.1061/9780784480601.051

Locate the Document

https://doi.org/10.1061/9780784480601.0

Persistent Identifier

http://archives.pdx.edu/ds/psu/21093

Publisher

ASCE

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