华中农业大学学报2025，Vol.44Issue(2)：49-61,13.DOI:10.13300/j.cnki.hnlkxb.2025.02.006
密闭式笼养蛋鸡舍秋季热环境数值模拟与优化
Numerical simulation and optimization of thermal environment in a closed cage-rearing layer house in autumn
摘要
Abstract
The distribution of the temperature field,relative humidity field,and airflow velocity field in the current layer house was simulated with computational fluid dynamics(CFD)to optimize the thermal environment in a closed cage-rearing layer house under the mode of vertical ventilation in autumn.The ac-curacy of the numerical model was verified.The average THVI(temperature-humidity-velocity index)and coefficient of variation(CVTHVI)of the cage-rearing areas were calculated for the parameters of ventilation equipment including the angle of the guide plate at the front mountain wall tunnel inlet(θ1),the angle of the guide plate at the side wall tunnel inlet(θ2)and ventilation volume of a suction fan at the end(Q)at three different levels by conducting 17 sets of orthogonal simulation experiments.The results showed that the av-erage relative error of temperature,relative humidity,and airflow velocity at the 24 verification points set on the aisle of cage was 0.38％,0.52％,and 4.62％,respectively,indicating that the accuracy of the nu-merical model is high.When the parameters of ventilation equipment θ1,θ2 and Q were set to 10°,90° and 42 000 m3/h,the average THVI and coefficient of variation CVTHVI of the airflow field in the cage-rearing areas was 25.65 and 1.64％,1.61％and 23.93％lower than that of the original scheme of ventilation,ben-eficial for improving the suitability and balance of the thermal environment in the cage-rearing areas of the layer house.关键词
笼养蛋鸡舍/数值模拟/热环境/温度/相对湿度/气流速度Key words
closed cage rearing layer house/numerical simulation/hot environment/temperature/relative humidity/airflow velocity分类
农业科技引用本文复制引用
周健伟,魏泽彬,王树才,龚东军..密闭式笼养蛋鸡舍秋季热环境数值模拟与优化[J].华中农业大学学报,2025,44(2):49-61,13.基金项目
2024年湖北省科技人才服务企业项目(2024DJC024) （2024DJC024）
