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Biphasic Computational Fluid Dynamics Modelling of the Mixture in an Agricultural Sprayer Tank

Agitation inside agricultural sprayer tanks can be studied while using an international standard procedure, based on obtaining internal samples of liquid. However, in practice, this test is not easy to perform. Herein, we propose the explicit study of the mixing procedure with biphasic computer simu...

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Autores principales: Badules, Jorge, Vidal, Mariano, Boné, Antonio, Gil, Emilio, García-Ramos, F. Javier
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221695/
https://www.ncbi.nlm.nih.gov/pubmed/32325638
http://dx.doi.org/10.3390/molecules25081870
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author Badules, Jorge
Vidal, Mariano
Boné, Antonio
Gil, Emilio
García-Ramos, F. Javier
author_facet Badules, Jorge
Vidal, Mariano
Boné, Antonio
Gil, Emilio
García-Ramos, F. Javier
author_sort Badules, Jorge
collection PubMed
description Agitation inside agricultural sprayer tanks can be studied while using an international standard procedure, based on obtaining internal samples of liquid. However, in practice, this test is not easy to perform. Herein, we propose the explicit study of the mixing procedure with biphasic computer simulations using Computational Fluid Dynamics (CFD). An experimental test was performed on a 3000 L tank of a commercial air-assisted sprayer, with two different agitation system configurations, in order to compare the results of several theoretical physical models of biphasic flows for CFD, both Eulerian and Lagrangian. From the analysis of these theoretical models, we conclude that the Volume of Fluid model is not viable and the Discrete Phase Model produces erroneous results, while the Eulerian and Mixture models can both be useful. However, the results obtained suggest that complex streams generated by real-world agitation systems produce more errors in calculations. Both models can be conducted in the design phase, prior to the implementation of the machine. In addition, the computer simulations allow for researchers to analyse the mixing process in detail, making it possible to evaluate the efficiency of an agitation system according to the time that is required to reach mixture homogeneity.
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spelling pubmed-72216952020-05-21 Biphasic Computational Fluid Dynamics Modelling of the Mixture in an Agricultural Sprayer Tank Badules, Jorge Vidal, Mariano Boné, Antonio Gil, Emilio García-Ramos, F. Javier Molecules Article Agitation inside agricultural sprayer tanks can be studied while using an international standard procedure, based on obtaining internal samples of liquid. However, in practice, this test is not easy to perform. Herein, we propose the explicit study of the mixing procedure with biphasic computer simulations using Computational Fluid Dynamics (CFD). An experimental test was performed on a 3000 L tank of a commercial air-assisted sprayer, with two different agitation system configurations, in order to compare the results of several theoretical physical models of biphasic flows for CFD, both Eulerian and Lagrangian. From the analysis of these theoretical models, we conclude that the Volume of Fluid model is not viable and the Discrete Phase Model produces erroneous results, while the Eulerian and Mixture models can both be useful. However, the results obtained suggest that complex streams generated by real-world agitation systems produce more errors in calculations. Both models can be conducted in the design phase, prior to the implementation of the machine. In addition, the computer simulations allow for researchers to analyse the mixing process in detail, making it possible to evaluate the efficiency of an agitation system according to the time that is required to reach mixture homogeneity. MDPI 2020-04-18 /pmc/articles/PMC7221695/ /pubmed/32325638 http://dx.doi.org/10.3390/molecules25081870 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Badules, Jorge
Vidal, Mariano
Boné, Antonio
Gil, Emilio
García-Ramos, F. Javier
Biphasic Computational Fluid Dynamics Modelling of the Mixture in an Agricultural Sprayer Tank
title Biphasic Computational Fluid Dynamics Modelling of the Mixture in an Agricultural Sprayer Tank
title_full Biphasic Computational Fluid Dynamics Modelling of the Mixture in an Agricultural Sprayer Tank
title_fullStr Biphasic Computational Fluid Dynamics Modelling of the Mixture in an Agricultural Sprayer Tank
title_full_unstemmed Biphasic Computational Fluid Dynamics Modelling of the Mixture in an Agricultural Sprayer Tank
title_short Biphasic Computational Fluid Dynamics Modelling of the Mixture in an Agricultural Sprayer Tank
title_sort biphasic computational fluid dynamics modelling of the mixture in an agricultural sprayer tank
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221695/
https://www.ncbi.nlm.nih.gov/pubmed/32325638
http://dx.doi.org/10.3390/molecules25081870
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