Simulation of Water Temperature by Using Urban Lake Temperature Model
Publication: Journal of Hydraulic Engineering
Volume 144, Issue 1
Abstract
Water temperature models of urban lakes may fail to reproduce thermal characteristics if the reduction of wind field attributable to sheltering along the banks is not considered. To quantify the effect of wind sheltering, a new wind sheltering (WST) model was developed and coupled with a vertical heat conduction model to create an urban lake temperature model (ULTM). Based on the relationship between the wind direction and obstacle location, as well as the characteristics of wind variation downwind from the obstacle, the WST model could calculate a time-dependent wind sheltering coefficient () to dynamically adjust the wind data for the water temperature model. The proposed model was verified using measurements from Guozheng Lake (central China), and good consistency was reported. The results showed that the enhanced modeling system when combined with the proposed WST model was an effective tool for temperature simulation.
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Acknowledgments
This study was supported by the National Key Research and Development Program of China (No. 2016YFC0402204), the Natural Science Foundation of Hubei Province (No. 2016CFA092), and the National Natural Science Foundation of China (No. 51379016).
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Published In
Journal of Hydraulic Engineering
Volume 144 • Issue 1 • January 2018
Copyright
©2017 American Society of Civil Engineers.
History
Received: Mar 30, 2016
Accepted: Jun 27, 2017
Published online: Nov 15, 2017
Published in print: Jan 1, 2018
Discussion open until: Apr 15, 2018
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