Numerical Simulation of Unsaturated Soil Water Flow from a Trickle Point System, Considering Evaporation and Root Water Uptake

This research was carried out to study the effect of plants on the wetted area for two soil types in Iraq and predict an equation to determine the wetted radius and depth for two different soil types cultivated with different types of plants, the wetting patterns for the soils were predicted at eve...

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Autores principales:	Lina Ali Khalil, Maysoon Basheer Abid
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2018
Materias:	Numerical simulation, Richard's equation, root water uptake, soil moisture content Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/6904587860eb42978b50d43ed43d61e2
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spelling	oai:doaj.org-article:6904587860eb42978b50d43ed43d61e22021-12-02T05:27:12ZNumerical Simulation of Unsaturated Soil Water Flow from a Trickle Point System, Considering Evaporation and Root Water Uptake10.22153/kej.2018.05.0051818-11712312-0789https://doaj.org/article/6904587860eb42978b50d43ed43d61e22018-12-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/63https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 This research was carried out to study the effect of plants on the wetted area for two soil types in Iraq and predict an equation to determine the wetted radius and depth for two different soil types cultivated with different types of plants, the wetting patterns for the soils were predicted at every thirty minute for a total irrigation time equal to 3 hr. Five defferent discharges of emitter and five initial volumetric soil moisture contents were used ranged between field capacity and wilting point were utilized to simulate the wetting patterns. The simulation of the water flow from a single point emitter was completed by utilized HYDRUS-2D/3D software, version 2.05. Two methods were used in developing equations to predict the domains of the wetting pattern. The principal strategy manages each soil independently and includes plotting, fitting, and communicating relevant connections for wetted zone and profundity, maximum error did not exceed 31.2%, modeling efficiency did not less 0.95, and root mean square error did not surpass 1.43 cm. The second strategy additionally treated each soil independently yet used electronic programming that uses different relapse methods for wetted territory and profundity, the maximum error did not exceed 15.64 %, modeling efficiency did not less 0.98, and root mean square error did not surpass 1.18 cm. a field test was directed to quantify the wetted radius to check the outcome acquired by the software HYDRUS-2D, contrast the estimation and the reproduced by the software. The after effects of the conditions to express the wetted radius and depth regarding the time of water system, producer release, and initial soil moisture content were general and can be utilized with great precision. Lina Ali KhalilMaysoon Basheer AbidAl-Khwarizmi College of Engineering – University of BaghdadarticleNumerical simulation, Richard's equation, root water uptake, soil moisture contentChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 14, Iss 4 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Numerical simulation, Richard's equation, root water uptake, soil moisture content Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Numerical simulation, Richard's equation, root water uptake, soil moisture content Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Lina Ali Khalil Maysoon Basheer Abid Numerical Simulation of Unsaturated Soil Water Flow from a Trickle Point System, Considering Evaporation and Root Water Uptake
description	This research was carried out to study the effect of plants on the wetted area for two soil types in Iraq and predict an equation to determine the wetted radius and depth for two different soil types cultivated with different types of plants, the wetting patterns for the soils were predicted at every thirty minute for a total irrigation time equal to 3 hr. Five defferent discharges of emitter and five initial volumetric soil moisture contents were used ranged between field capacity and wilting point were utilized to simulate the wetting patterns. The simulation of the water flow from a single point emitter was completed by utilized HYDRUS-2D/3D software, version 2.05. Two methods were used in developing equations to predict the domains of the wetting pattern. The principal strategy manages each soil independently and includes plotting, fitting, and communicating relevant connections for wetted zone and profundity, maximum error did not exceed 31.2%, modeling efficiency did not less 0.95, and root mean square error did not surpass 1.43 cm. The second strategy additionally treated each soil independently yet used electronic programming that uses different relapse methods for wetted territory and profundity, the maximum error did not exceed 15.64 %, modeling efficiency did not less 0.98, and root mean square error did not surpass 1.18 cm. a field test was directed to quantify the wetted radius to check the outcome acquired by the software HYDRUS-2D, contrast the estimation and the reproduced by the software. The after effects of the conditions to express the wetted radius and depth regarding the time of water system, producer release, and initial soil moisture content were general and can be utilized with great precision.
format	article
author	Lina Ali Khalil Maysoon Basheer Abid
author_facet	Lina Ali Khalil Maysoon Basheer Abid
author_sort	Lina Ali Khalil
title	Numerical Simulation of Unsaturated Soil Water Flow from a Trickle Point System, Considering Evaporation and Root Water Uptake
title_short	Numerical Simulation of Unsaturated Soil Water Flow from a Trickle Point System, Considering Evaporation and Root Water Uptake
title_full	Numerical Simulation of Unsaturated Soil Water Flow from a Trickle Point System, Considering Evaporation and Root Water Uptake
title_fullStr	Numerical Simulation of Unsaturated Soil Water Flow from a Trickle Point System, Considering Evaporation and Root Water Uptake
title_full_unstemmed	Numerical Simulation of Unsaturated Soil Water Flow from a Trickle Point System, Considering Evaporation and Root Water Uptake
title_sort	numerical simulation of unsaturated soil water flow from a trickle point system, considering evaporation and root water uptake
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2018
url	https://doaj.org/article/6904587860eb42978b50d43ed43d61e2
work_keys_str_mv	AT linaalikhalil numericalsimulationofunsaturatedsoilwaterflowfromatricklepointsystemconsideringevaporationandrootwateruptake AT maysoonbasheerabid numericalsimulationofunsaturatedsoilwaterflowfromatricklepointsystemconsideringevaporationandrootwateruptake
_version_	1718400416934264832

Numerical Simulation of Unsaturated Soil Water Flow from a Trickle Point System, Considering Evaporation and Root Water Uptake

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