摘要由于经济发展快，食品污染、环境污染加剧，又因为人们工作压力大、运动也少，所以医院的病人不断增多，病房也人满为患。病人对医院房间的舒适性和空气品质的要求也越来越多，所以这得到更多人的关注。如果想要选择适合普通病房的通风方式，那么对医院房间内气流组织形式进行模拟分析是非常必要的前提。86025

本论文对南京市医院房间夏日的冷负荷进行运算，得到房间必须的新风量和通风速度，根据标准对房间的计算温度、通风温差以及相对湿度进行设定。对上送下回、上送上回、下送上回三种气流组织形式采用Fluent软件分别进行模拟，得出它们的温度分布云图和速度分布云图，模拟分析的结果对选择病房的气流组织形式具有指导意义。

第一，对医院房间通风方式的关键进行分析，第二，阐明气流组织在国内外的研究情况，第三步就是按照医院病房的情况对其通风方式进行模拟研究分析。

研究结果表明：上送下回的气流组织形式比较适用医院夏季的通风要求。

毕业论文关键字：病房气流组织；温度场；速度场；Fluent模拟软件

Abstract Due to the rapid development of economic, food contamination,environmental pollution aggravated, and because of the work pressure and the lack of exercise, so the hospital’s patients are increasing, and ward is often in short supply。 Patients have more and more demands for air quality and comfort in hospital ward, so it is concerned by the people。 the airflow distribution and the flow condition in the ward under various air flow can be knew, which provides the theoretical basis for the selection of ventilation mode in the general ward。

This paper caries on the operation to the summer cooling load of the hospital room in Nanjing,and gets the fresh air quantity and the ventilation rate,according to the standard to the room temperature,the ventilation temperature difference and the relative humidity。Up-supply and down-return,up-supply and up-return,down-supply and up-return three airflow organization forms were simulated by Fluent software, we can draw their temperature and velocity distribution clouds。 This provides a theoretical basis for the choice of ventilation mode in the general ward。

Firstly, the importance of the wards of airflow are analyzed, Secondly, this paper summarizes the research status of air flow organization at home and abroad。 Finally, according to the situation of Nanjing a general ward in Nanjing, the simulation analysis of various air flow organization forms were carried out。

The research results show that the upper air inlet and lower air outlet airflow organization form is more applicable to hospital summer air-conditioning requirements。

Keywords: ward air flow organization; temperature field; velocity field; Fluent simulation software 

目  录

第一章  绪论 1

1。1 课题的背景意义 1

1。1。1 空调房间内气流组织设计的重要性 1

1。1。2 医院病房内气流组织形式研究的必要性 1

1。2 国内外研究现状 2

1。2。1 国内外关于气流组织的研究现状 2

1。2。2 国内外CFD模拟技术研究历史与现状 3

1。3 研究的内容、方法和技术路线 4

1。3。1 本文研究的主要内容 4

1。3。2 研究方法 4

1。3。3 技术路线