DrainCAN—A MATLAB Function for Generation of a HEC-RAS-Compatible Drainage Canal Network Model
Department of Hydroscience and Engineering, Faculty of Civil Engineering, University of Zagreb, HR-10000 Zagreb, Croatia
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Academic Editors: Karlheinz Schwarz and Demos T. Tsahalis
Computation 2021, 9(5), 51; https://doi.org/10.3390/computation9050051
Received: 26 February 2021
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Revised: 1 April 2021
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Accepted: 21 April 2021
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Published: 23 April 2021
(This article belongs to the Section Computational Engineering)
The dimensioning of canal geometry in a surface drainage network influences the size and functionality of canal structures, reduces flood hazard, and consequently imposes restrictions on land use. Reliable free-surface flow calculation for optimization of the canal network can be challenging because numerous hydraulic structures and canal interactions influence the flow regime. The HEC-RAS software of the US Army Corps of Engineers’ Hydrologic Engineering Center is often used for this purpose as it allows the user to simulate the effect of numerous hydraulic structures on flow regime. This paper presents a MATLAB function, DrainCAN, for generating a HEC-RAS model from standard runoff input data, i.e., topographic data and canal design geometry (profile and slope). The DrainCAN function allows for fast optimization of the network geometry—it generates normal flow depth estimation and observed water levels in critical locations that need to be optimized. Advantages of the DrainCAN function are fast generation of the HEC-RAS hydraulic model files from simple input files, introduction of optimization variables in the model, and automatic adjustment of model geometry for computational junctions. This allows fast iteration of the canal design parameters, namely cross-sectional geometry, invert elevation, and longitudinal slope, and the evaluation of introduced changes on the flow regime.
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Keywords:
agricultural drainage; drainage canal network; HEC-RAS
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MDPI and ACS Style
Gilja, G.; Harasti, A.; Fliszar, R. DrainCAN—A MATLAB Function for Generation of a HEC-RAS-Compatible Drainage Canal Network Model. Computation 2021, 9, 51. https://doi.org/10.3390/computation9050051
AMA Style
Gilja G, Harasti A, Fliszar R. DrainCAN—A MATLAB Function for Generation of a HEC-RAS-Compatible Drainage Canal Network Model. Computation. 2021; 9(5):51. https://doi.org/10.3390/computation9050051
Chicago/Turabian StyleGilja, Gordon, Antonija Harasti, and Robert Fliszar. 2021. "DrainCAN—A MATLAB Function for Generation of a HEC-RAS-Compatible Drainage Canal Network Model" Computation 9, no. 5: 51. https://doi.org/10.3390/computation9050051
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