摘要
采用CFD技术建立了A320飞机头等客舱及人体的仿真模型,基于客舱流体动力学数学模型,模拟了桥载空调在不同送风速度下客舱内的速度场、温度场和PM_(10)浓度场。分别计算出在不同送风速度下空气分布特性指标(ADPI)及排污效率的值。基于ADPI和排污效率构造了桥载空调最优送风速度评价函数。根据各个采样点处风速、温度和PM_(10)浓度的值,计算出不同送风速度下评价函数的值。通过高斯拟合,得到送风速度与评价函数之间函数关系式,并得到桥载空调最优的送风速度。所得到的桥载空调最优送风速度既能够使客舱内环境最优,而且能够为桥载空调的节能控制提供依据。
A model of A320 aircraft cabin and human body was established using CFD. Temperature field, velocity field and PM10 concentration field was simulated at different air supply rate of the bridge load air conditioning based on mathematical model of fluid dynamics in cabin. The values of the ADPI and drainage efficiency were calculated respectively at different air supply rate. The optimal supply air velocity evaluation function was constructed based on ADPI and drainage efficiency. The wind speed, temperature and PM10 concentration of the sample points were used to calculate the value of the evaluation function with different air supply rate. The function relation between air supply rate and evaluation function was obtained by Gaussianfitting, then the optimal air supply rate was obtained, which can make the cabin environment optimal and provide the basis for energy saving control of bridge load air conditioning.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2018年第1期164-170,共7页
Journal of System Simulation
基金
国家自然科学基金委-中国民航局联合基金(U1433107)
关键词
CFD
A320客舱
数值模拟
热舒适性
排污效率
CFD
A320 aircraft cabin
numerical simulation
thermal comfort
drainage efficiency
