Analysis of infiltration of 2D trickle irrigation under multiple‐line sources |
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| Authors: | Jiann‐Mou Chen Yih‐Chi Tan Yu‐Zhang Wu |
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| Institution: | 1. Department of Construction Management, Hwa Hsia Institute of Technology, Taipei, 235, Taiwan;2. Department of Bioenvironmental Systems Engineering, and Hydrotech Research Institute, National Taiwan University, Taipei, 106, Taiwan;3. Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, 106, Taiwan |
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| Abstract: | The analysis of infiltration of 2D trickle irrigation under multiple‐line sources, governed by the celebrated Richards equation, is performed, aiming at determining the efficiency of trickle irrigation so as to reduce the water demand. A closed‐form solution is explicitly obtained by utilizing the Fourier integral transformation, and this serves as a means to compute the distribution of volumetric water content during trickle irrigation. Results for the infiltration of 2D trickle irrigation under single line and multiple‐line sources are presented, which illustrate the distribution of infiltration water that diffuses into the soil, and make it possible to calculate the period of time required for trickle irrigation for different plants. The results can be applied to verify complicated solutions from other numerical models. Copyright © 2007 John Wiley & Sons, Ltd. |
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| Keywords: | trickle irrigation volumetric water content infiltration Fourier integral transformation |
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