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桥载空调制热下飞机客舱热舒适性数值模拟

林家泉,刘明良   

  1. (taptap下载安装安卓电子信息与自动化学院,天津300300)
  • 收稿日期:2018-03-04 修回日期:2018-04-25 出版日期:2019-04-26 发布日期:2019-05-10
  • 作者简介:林家泉(1975—),男,黑龙江鹤岗人,副教授,博士,研究方向为飞机客舱能耗预测控制.
  • 基金资助:
    国家自然科学基金项目(U1433107)

Numerical simulation of aircraft cabin thermal comfort under heating operation of bridge load air conditioner

LIN Jiaquan, LIU Mingliang   

  1. (College of Electronic Information and Automation, CAUC, Tianjin 300300, China)
  • Received:2018-03-04 Revised:2018-04-25 Online:2019-04-26 Published:2019-05-10

摘要: 应用计算流体动力学(CFD)技术建立了B737 飞机经济客舱内环境和人体的三维模型,模拟冬季寒冷气候环境下桥载空调对飞机客舱制热供暖时的客舱内空气流场,分析了桥载空调不同送风速度对温度场、风速场、人体热舒适性的影响。以空气分布特性指标(ADPI, air diffusion performance index)作为客舱内人体热舒适评价依据。通过利用采样点处温度值和风速值计算得到客舱内ADPI,并对不同送风速度下的ADPI 进行描点和高斯曲线拟合,得到其与桥载空调送风速度之间的函数关系,从而确定满足要求热舒适性下的送风速度范围,为桥载空调的控制及调节提供理论依据。

关键词: 桥载空调, B737 客舱, CFD, 热舒适性, ADPI, 曲线拟合

Abstract: The 3D models of B737 aircraft second class cabin and human body are established using CFD, simulating the air flow field inside cabin under heating operation of bridge load air conditioner in cold winter. The influence of air supply velocity on temperature field, wind velocity field and thermal comfort are analyzed. Take ADPI as the evaluating indicator of thermal comfort in cabin, calculating the inside ADPI using values of temperature and wind velocity at sample points. Point tracking and Gaussian curve fitting of ADPI under different air supply velocities are conducted, obtaining the function relationship between ADPI and air supply velocity, confirming the range of air supply velocity with the requirement of thermal comfort, providing theoretical basis for the control and adjustment of bridge load air conditioner.

Key words: bridge load air conditioner, B737 aircraft cabin, CFD, thermal comfort, ADPI, fitting curve

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