| 王刚,冯超,郑丽.民用飞机客舱个人通风喷嘴布置研究[J].装备环境工程,2021,18(9):43-49. WANG Gang,FENG Chao,ZHENG Li.Study on Personal Ventilation Nozzles Arrangement in Civil Aircraft Passenger Cabin[J].Equipment Environmental Engineering,2021,18(9):43-49. |
| 民用飞机客舱个人通风喷嘴布置研究 |
| Study on Personal Ventilation Nozzles Arrangement in Civil Aircraft Passenger Cabin |
| 投稿时间：2021-04-23 修订日期：2021-06-09 |
| DOI：10.7643/issn.1672-9242.2021.09.007 |
| 中文关键词: 民用飞机 个人通风 喷嘴布置 下拉式行李箱 设计指标 数值模拟 |
| 英文关键词:civil aircraft personal ventilation nozzles arrangement pull-down trunk design index numerical simulation |
| 基金项目: |
|
|
|
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 获得民用飞机客舱个人通风喷嘴的最佳布置方案。方法 针对下拉式行李箱的客舱布局，建立单排客舱个人通风的k-ε模型，使用ICEM CFD进行网格划分。梳理并分析国内外个人通风的标准手册，将人体头部高度处的风速大于1 m/s作为设计指标。提出2种喷嘴布置方案——分散布置和集中排列布置，设计5种工况，运用FLUENT软件进行数值计算。结果 分散布置方案，第一种工况下，头部最大风速仅0.39 m/s；第二种工况下，仅中间位置乘客能获得1 m/s以上的风速，两边的乘客基本无吹风。集中排列方案，第三种工况下，头部最大风速为0.9 m/s；第四种工况下，乘客1头部最高风速只能达到0.52 m/s。在个人通风量不变的前提下，工况5将喷嘴口径缩小为20 mm，乘客1头部处风速可达1.09 m/s。结论 作为民用飞机客舱内主通风系统的辅助调节手段，个人通风系统可以减轻乘客的闷热感，对于安装了下拉式行李箱的客舱，因其PSU空间狭小，导致喷嘴布置较为困难。根据计算结果，分散布置方式无法满足左右两侧乘客的需求。在喷嘴口径缩小为20 mm后，集中排列方式能满足所有乘客的需求，目前该方案已应用于某型民机客舱的个人通风系统。 |
| 英文摘要: |
| To obtain the best arrangement scheme of civil aircraft cabin personal ventilation nozzles. For the cabin layout of pull-down trunk compartment, the k-ε model of individual ventilation in single row cabin was established and meshed by ICEM CFD. After sorting out and analyzing the standard manual of personal ventilation at home and abroad, the wind speed at the human head greater than 1 m/s was taken as the design index. Two kinds of nozzle layout schemes were put forward-decentralized arrangement and centralized arrangement. 5 conditions were designed and numerical calculated by FLUENT. For the decentralized layout scheme, the maximum wind speed at the head was only 0.39 m/s under the first condition. While under the second condition, only the passenger in the middle position could obtain the wind speed greater than 1 m/s, the passengers on both sides were basically not blown. For the centralized layout scheme, the maximum wind speed at the head was 0.9 m/s under the third condition, and the maximum wind speed of passenger 1 could only reach 0.52 m/s under the fourth condition. Under the condition of constant personal ventilation, the nozzle diameter was reduced to 20 mm in condition 5, and the wind speed at the head of passenger 1 could reach 1.09 m/s. As an auxiliary adjustment method for the main ventilation system in civil aircraft passenger cabin, the personal ventilation system will relieve the passenger’s hot feeling. For cabins with pull-down trunk, it is difficult to arrange nozzles due to the small space of PSU. According to the calculation results, the decentralized layout cannot meet the needs of the left and right passengers. After the nozzle diameter is reduced to 20 mm, the centralized arrangement can meet the needs of all passengers. At present, this scheme has been applied to the personal ventilation system of a civil aircraft cabin. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
