黑龙江畜牧兽医Issue(3)：55-64,10.DOI:10.13881/j.cnki.hljxmsy.2025.09.0051
基于CFD的夏季蛋鸡舍环境模拟与优化
CFD-based simulation and optimization of environmental conditions of laying hen houses in summer
摘要
Abstract
In order to solve the issues of uneven temperature-humidity distribution,heat accumulation,and insufficient airflow in enclosed layer houses in summer,this study employed computational fluid dynamics(CFD)to simulate and optimize the indoor thermal environment.Based on field measurements obtained from a five-tier stacked enclosed layer house—including temperature,air velocity,relative humidity,and structural parameters—a CFD model of the henhouse and a porous-medium model of the layer cages were established.Six ventilation schemes were subsequently designed to optimize the structural configuration of the house.The results showed that,for the baseline ventilation model,the average relative errors(MRE)of temperature and relative humidity were both below 3%,the MRE of air velocity was approximately 10%,and the normalized mean squared error(NMSE)values were all less than 0.25,indicating good agreement between simulation and measurements.Significant heat accumulation was observed in the middle and rear zones of the house under summer conditions,where local temperatures reached 31℃.The overall relative humidity was relatively high—about 81%at the front end,and airflow distribution was nonuniform,with a maximum velocity of 2.73 m/s at the inlet region,which was higher than that in the downstream areas.The configuration with an inlet spacing of 1.14 m and 32 air inlets on both sidewalls exhibited the best performance,improving the uniformity of temperature,airflow velocity,and relative humidity by 18.00%,10.54%,and 18.38%,respectively.The average equivalent temperature of the layer zones decreased by 0.5℃,effectively mitigating local heat and humidity accumulation in summer and enhancing environmental homogeneity.It showed that this scheme could optimize the structrual design of closed layer houses in summer.关键词
蛋鸡舍/蛋鸡/多孔介质/模拟分析/环境优化Key words
laying hen houses/laying hens/porous media/simulation analysis/environmental optimization分类
农业科技引用本文复制引用
张善杰,朱成杰,李华龙,詹凯,李岩,张莉莉,李军,李淼..基于CFD的夏季蛋鸡舍环境模拟与优化[J].黑龙江畜牧兽医,2026,(3):55-64,10.基金项目
国家自然科学基金项目(31902205) （31902205）
国家现代农业产业技术体系项目(CARS-40) （CARS-40）
