Canary greenhouse CFD nocturnal climate simulation
| Autor: | Salma Elbahi, Allal Senhaji, Hassan Demrati, Hicham Fatnassi, Thierry Boulard, Mhamed Mouqallid, L. Bouirden, Hassan Majdoubi |
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| Přispěvatelé: | Laboratoire de Recherche Scientifique et Pédagogique au Monde Méditerranéen, Centre Régional des Métiers de l'Education et de la Formation, Equipe de recherche en Energétique et Mécanique des Fluides, Ecole Nationale Supérieure des Arts et Métiers de Meknès (ENSAM de Meknès), Institut Sophia Agrobiotech (ISA), Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Recherche Agronomique (INRA), Laboratoire de Thermodynamique et Energétique (LTE), Faculté des Sciences Agadir (FSA), Université Ibn Zohr [Agadir]-Université Ibn Zohr [Agadir], Institut Sophia Agrobiotech [Sophia Antipolis] (ISA), Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Faculté des Sciences Agadir |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Meteorology Greenhouse Airflow [SDV]Life Sciences [q-bio] Insect Screens Microclimate CFD Computational fluid dynamics 7. Clean energy 01 natural sciences Wind speed Latent heat Roof business.industry Humidity 04 agricultural and veterinary sciences 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science business 010606 plant biology & botany |
| Zdroj: | Open Journal of fluid Dynamics Open Journal of fluid Dynamics, Scientific Research, 2016, 6, pp.88-100. ⟨10.4236/ojfd.2016.62008⟩ Open Journal of Fluid Dynamics (6), 88-100. (2016) |
| ISSN: | 2165-3852 2165-3860 |
| DOI: | 10.4236/ojfd.2016.62008⟩ |
| Popis: | The aim of this paper is to predict in details the distributed nocturnal climate inside a one hectare Moroccan canary type tomato-greenhouse equipped with continuous roof and sidewalls ventilation openings with fine insect screens, by means of 3D CFD (Computational Fluid Dynamics) simulations by using a commercial Software package CFD2000 based on the finite volumes method to solve the mass, momentum and energy conservation equations. The turbulent transfers were described by a k-e model. Likewise, the dynamic influences of insect screens and tomato crop on airflow movement were modeled by means of the concept of porous medium with the Boussinesq assumption. Atmospheric radiations contribution was included in the model by customising the plastic roof cover temperature deducted from its energy balance. Also, the CFD code was customized in order to simulate in each element of the crop cover the sensible and latent heat exchanges between the greenhouse air and tomato crop. Simulations were carried out with a wind prevailing direction perpendicular to the roof openings (west-east direction). Simulations were later validated with respect to temperature and specific humidity field measurements inside the experimental greenhouse. Also, the model was verified respect to global sensible and latent heat transfers. Results show that, generally, greenhouse nocturnal climate distribution is homogeneous along the studies greenhouse area. The insect proof significantly reduced inside airflow wind speed. But there is no significant effect on the inside air temperature and specific humidity respect to outside. |
| Databáze: | OpenAIRE |
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