太原理工大学学报2025，Vol.56Issue(6)：1142-1153,12.DOI:10.16355/j.tyut.1007-9432.20230482
基于土壤蒸发与作物蒸腾的春季日光温室内温湿度场数值模拟
Numerical Simulation of Springtime Temperature and Humidity Fields in Solar Greenhouse Based on Soil Evaporation and Crop Transpiration
摘要
Abstract
[Purposes]With focuses on the"four-stage temperature"management requirements for crops in solar greenhouses,the solar greenhouse in Taiyuan area is taken as research object.[Methods]A numerical model of a naturally ventilated solar greenhouse was constructed by using Computational Fluid Dynamics(CFD)method.In the proposed model,the influence of crop resistance on indoor airflow were considered,as well as the transpiration of crops and the impact of soil evapora-tion on the thermal and humidity environment inside the greenhouse were considered.The movement of indoor airflow and the variations of temperature and humidity at different times during the spring season under natural ventilation and crop cultivation conditions were investigated.[Results]The re-sults show that crops have a significant impact on the airflow field and temperature-humidity distribu-tion inside the solar greenhouse.Under the condition of hot-pressure ventilation,the temperature in the crop area is within the suitable range for crop growth from 0:00 to 11:00 and 18:00 to 24:00.How-ever,from 11:00 to 18:00,the temperature in the crop area becomes excessively high,which does not meet the temperature range required for the"four-stage temperature"management.From 0:00 to 21:00,the temperature and humidity in the crop area do not simultaneously reach the range prone to disease occurrence,indicating a low risk of diseases.However,from 21:00 to 24:00,the temperature and humidity in the crop area simultaneously reach the range prone to disease occurrence,which in-creases the likelihood of pest and disease infestations.关键词
日光温室/CFD/热湿环境/自然通风/多孔介质Key words
solar greenhouse/CFD/hot and humid environment/natural ventilation/porous media分类
农业科技引用本文复制引用
张庆元,杜震宇..基于土壤蒸发与作物蒸腾的春季日光温室内温湿度场数值模拟[J].太原理工大学学报,2025,56(6):1142-1153,12.基金项目
国家自然科学基金资助项目(52278118) （52278118）
