Inverse Calculation Model for Optimal Design of Rectangular Sedimentation Tanks
Publication: Journal of Environmental Engineering
Volume 139, Issue 3
Abstract
Because of the difficulty of specifying optimal design parameters of rectangular sedimentation tanks using a forward numerical model, an inverse calculation model based on an optimization algorithm and a forward model were developed in this paper. Using this model, a numerical simulation of the sedimentation tank involving determination of the velocity field and the concentration distribution of the particles by the forward model was conducted. The eddy viscosity was obtained with the aid of turbulence model equations. The inverse model was applied to the optimal design of the horizontal baffle location in a given sedimentation tank. As a one-dimensional nonlinear optimization method, Brent’s method was used. Moreover, the effect of the horizontal baffle location on flow and solids removal ratio was also discussed. Compared with the traditional forward model for specifying optimal design parameters for rectangular sedimentation tanks, the inverse calculation model can search directly for the optimum design parameters and can obtain good results.
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Acknowledgments
The study was supported by the National Basic Research Program of China (Program 973) (Grant No. 2008CB418202), National Key Technology R&D Program (Grant No. 2012BAB03B04), National Nature Science Foundation of China (No. 51179052), Ministry of Water Resources’ Special Funds for Scientific Research on Public Causes (Grant No. 201001028), Major Science and Technology Program for Water Pollution Control and Treatment (2012ZX07103-005), the “Fundamental Research Funds for the Central Universities” (No. 2009B17814), and the “Six Talent Peak” Project of Jiangsu Province (08-C).
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 139 • Issue 3 • March 2013
Pages: 455 - 459
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Sep 20, 2011
Accepted: Sep 11, 2012
Published online: Sep 13, 2012
Published in print: Mar 1, 2013
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