A Comprehensive Model for Hydraulic Analysis and Wetting Patterns Simulation under Subsurface Drip Laterals
نویسندگان
چکیده
In the absence of suitable specialized models to simulate soil wetting patterns in subsurface drip irrigation systems considering hydraulic conditions along laterals, a new model was developed and named “comprehensive model” this study. This couples lateral characteristics with properties utilizes Hydrus-3D software as complementary section front beneath lateral. To evaluate model, three 16 mm drip-line pipes 62 m length 20, 40, 50 cm spacing emitters 2 5 L/h discharge were buried at 0.2 depth box containing clay loamy soil. Then, experiments conducted 50, 100, 150 kPa pressures, pattern geometry associated each measured 1, 2, 3, 24 h compared simulations. Moreover, values root mean square error (RMSE), absolute (MAE), refined index agreement ranged from 0.013 0.03 m, 0.002 0.004 0.886 0.927 respectively. addition, mentioned indexes first last cross-sections laterals varied between 0.001 0.011 0.035 0.814 0.942 These results proved that differences predicted dimensions are not significant comprehensive provides good estimations emitter flow rates, well realistic patterns.
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ژورنال
عنوان ژورنال: Water
سال: 2022
ISSN: ['2073-4441']
DOI: https://doi.org/10.3390/w14121965