CAJ | 학술논문

现有仓储粮堆数学模型难以有效模拟实际粮堆温度的变化过程.本试验应用计算流体力学(CFD)方法模拟研究了仓储粮堆在不通风情况下温度场的变化情况,根据粮仓结构和仓外环境条件,通过确定模拟区域、网格划分、模型选择,确定了合理的CFD模拟方案,得到并分析了两种不同尺度粮仓内仓储粮堆温度随季节变化过程的模拟结果.通过对准静态仓储粮堆内部温度随环境温度变化过程的分析,为仓储通风系统的优化设计提供了有价值的参考依据,为进一步的模拟研究奠定了良好基础.
현유창저량퇴수학모형난이유효모의실제량퇴온도적변화과정.본시험응용계산류체역학(CFD)방법모의연구료창저량퇴재불통풍정황하온도장적변화정황,근거량창결구화창외배경조건,통과학정모의구역、망격화분、모형선택,학정료합리적CFD모의방안,득도병분석료량충불동척도량창내창저량퇴온도수계절변화과정적모의결과.통과대준정태창저량퇴내부온도수배경온도변화과정적분석,위창저통풍계통적우화설계제공료유개치적삼고의거,위진일보적모의연구전정료량호기출.
The existing mathematical models are hard to simulate effectively the actual process of temperature field of stored bulk grain.The CFD method was used to simulate the temperature field of stored bulk grain in un-a-erated bins in this work.CFD mathematical models and simulation schemes were established with determining the simulation area and boundary conditions,dividing gids and selecting models according to bin structure and environ-mental temperature.Results:The temperature fields and the temperature changes with ambient temperature of two bins with different length ale simulated by using the method described above.This work provides a valuable base for optimizing bulk ventilation system and further simulation.