CFD Based Study of Heterogeneous Microclimate in a Typical Chinese Greenhouse in Central China
Indoor microclimate is important for crop production and quality in greenhouse cultivation. This paper focuses on microclimate study based on a computational fluid dynamics (CFD) model of a typical plastic greenhouse (with a sector shape vertical cross-section) popularly used in central China. A rad...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2013-05-01
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| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311913603093 |
| _version_ | 1818448798556356608 |
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| author | Xiao-wei WANG Jin-yao LUO Xiao-ping LI |
| author_facet | Xiao-wei WANG Jin-yao LUO Xiao-ping LI |
| author_sort | Xiao-wei WANG |
| collection | DOAJ |
| description | Indoor microclimate is important for crop production and quality in greenhouse cultivation. This paper focuses on microclimate study based on a computational fluid dynamics (CFD) model of a typical plastic greenhouse (with a sector shape vertical cross-section) popularly used in central China. A radiation model is added into the CFD model so as to simulate coupling of convective transfers and radiative exchanges at the cover and the roof, instead of using the usual coupling approach based on energy balance. In addition, a fractal permeability model is innovatively adopted in the modeling of the crop canopy. Compared the numerical results with measured experimental data, the model simulation is proved with success. This model then is used to explore the microclimate variable distributions in the greenhouse. It shows that the airflow pattern, temperature and humidity profiles are different from those in a sawtooth Mediterranean-type greenhouse. The study suggests that this deliberately developed CFD model can be served as a useful tool in macroclimate research and greenhouse design investigating. |
| first_indexed | 2024-12-14T20:25:14Z |
| format | Article |
| id | doaj.art-a46b1371060e400780fad2be570fd828 |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-14T20:25:14Z |
| publishDate | 2013-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-a46b1371060e400780fad2be570fd8282022-12-21T22:48:39ZengElsevierJournal of Integrative Agriculture2095-31192013-05-01125914923CFD Based Study of Heterogeneous Microclimate in a Typical Chinese Greenhouse in Central ChinaXiao-wei WANG0Jin-yao LUO1Xiao-ping LI2Correspondence WANG Xiao-wei, Mobile: 13971538700; State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, P.R. ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, P.R. ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, P.R. ChinaIndoor microclimate is important for crop production and quality in greenhouse cultivation. This paper focuses on microclimate study based on a computational fluid dynamics (CFD) model of a typical plastic greenhouse (with a sector shape vertical cross-section) popularly used in central China. A radiation model is added into the CFD model so as to simulate coupling of convective transfers and radiative exchanges at the cover and the roof, instead of using the usual coupling approach based on energy balance. In addition, a fractal permeability model is innovatively adopted in the modeling of the crop canopy. Compared the numerical results with measured experimental data, the model simulation is proved with success. This model then is used to explore the microclimate variable distributions in the greenhouse. It shows that the airflow pattern, temperature and humidity profiles are different from those in a sawtooth Mediterranean-type greenhouse. The study suggests that this deliberately developed CFD model can be served as a useful tool in macroclimate research and greenhouse design investigating.http://www.sciencedirect.com/science/article/pii/S2095311913603093plastic greenhouseCFD simulationmicroclimatefractalcoupled model |
| spellingShingle | Xiao-wei WANG Jin-yao LUO Xiao-ping LI CFD Based Study of Heterogeneous Microclimate in a Typical Chinese Greenhouse in Central China Journal of Integrative Agriculture plastic greenhouse CFD simulation microclimate fractal coupled model |
| title | CFD Based Study of Heterogeneous Microclimate in a Typical Chinese Greenhouse in Central China |
| title_full | CFD Based Study of Heterogeneous Microclimate in a Typical Chinese Greenhouse in Central China |
| title_fullStr | CFD Based Study of Heterogeneous Microclimate in a Typical Chinese Greenhouse in Central China |
| title_full_unstemmed | CFD Based Study of Heterogeneous Microclimate in a Typical Chinese Greenhouse in Central China |
| title_short | CFD Based Study of Heterogeneous Microclimate in a Typical Chinese Greenhouse in Central China |
| title_sort | cfd based study of heterogeneous microclimate in a typical chinese greenhouse in central china |
| topic | plastic greenhouse CFD simulation microclimate fractal coupled model |
| url | http://www.sciencedirect.com/science/article/pii/S2095311913603093 |
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