Spatiotemporal Analysis of Ventilation Efficiency in Single-Span Plastic Greenhouses in Hot-Humid Regions of China: Using Validated CFD Modeling

Song Wang, Naimin Kong, Lirui Liang, Yuexuan He, Wenjun Peng, Xiaohan Lu, Chi Qin, Zijing Luo, Wei Zhao, Chengyao Jiang, Mengyao Li, Yangxia Zheng and Wei Lu ()
Additional contact information
Song Wang: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Naimin Kong: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Lirui Liang: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Yuexuan He: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Wenjun Peng: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Xiaohan Lu: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Chi Qin: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Zijing Luo: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Wei Zhao: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Chengyao Jiang: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Mengyao Li: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Yangxia Zheng: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
Wei Lu: College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China

Agriculture, 2025, vol. 15, issue 16, 1-14

Abstract: To characterize the spatiotemporal distribution of temperature and airflow in single-span plastic-film greenhouses, we coupled field experiments with three-dimensional computational fluid dynamics (CFD) simulations in a warm–temperate region of China. Model reliability and validity were evaluated against field measurements. The average and maximum relative errors between simulated and measured values were 6% and 9%, respectively. Significant spatial heterogeneity in both temperature and airflow was observed. Vertically, temperature rose with height; horizontally, it declined from the center toward the sidewalls. Under prevailing meteorological conditions, the daily maxima occurred at distinct elevations above the fan-vent outlets. Airflow was most vigorous near the vents, whereas extensive stagnant zones aloft reduced overall ventilation efficiency. These findings provide a quantitative basis for designing single-span plastic film greenhouses in China’s hot–humid regions, informing ventilation improvements, and guiding future optimization efforts.

Keywords: airflow field; temperature field; plastic film greenhouse; spatiotemporal variation patterns; CFD (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/15/16/1792/pdf (application/pdf)
https://www.mdpi.com/2077-0472/15/16/1792/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:15:y:2025:i:16:p:1792-:d:1729744

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().