
Airpak学习教程翻译50页.doc
164页Airpak 2.0 使用指南办公室通风· 简介· 前言· 问题描述· 第一步:打开并定义一个新任务 · 第二步:创建模型· 第三步:加入辐射和模型· 第四步:计算网格· 第五步:检查风状况· 第五步:将模型保存到任务文件中· 第六步:计算一个解决方案· 第七步:检查结果· 汇总· 参考文献简介 这篇教程演示了如何使用Airpak在计算机上创建有两个人工作的办公室的模型教程中你将学会:· 打开一个新任务 · 包括计算机模拟相对湿度影响的分布 · 创建blocks, openings, vents, partitions, 和 walls · 创建辐射影响的模型· 改变计算机计算的迭代次数· 计算一个结果 · 检查模型表面轮廓和物体表面的矢量,以及横断面图· 空气入口的粒子流轨迹· 通过计算机计算检查 房间里的舒适度的预测平均值(PMV)和不满百分比(PPD)必装条件这个教程假设你对airpak没有经验,但是你很熟悉接口,如果您不是,请检查第一张的用户指南问题描述这个办公室分为两个部分,每部分包含一个人,坐在电脑前工作,如图 1.1。
这个办公室还包括六个荧光灯、暖气片、空气入口、回风口,窗户表面温度和空气流速剖面,目的是为了确定整个舒适的房间Table 1.1: 几何参数,导热性 ,窗户和扩散器的流动边界条件 尺寸温度速度进气口扩散0.2 m 0.3 m13.5 C0.85 m/s窗户3.65 m 1.16 m30.9 C---Table 1.2: 热源的尺寸和性能热源SizePower墙挂式取暖1.2 m 0.1 m 0.2 m1500 W人0.4 m 0.35 m 1.1 m75 WComputer 10.4 m 0.4 m 0.4 m108 WComputer 20.4 m 0.4 m 0.4 m173 W灯0.2 m 1.2 m 0.15 m34 WFigure 1.1:通风问题所研究的办公室的几何参数Step 1: Open and Define a New Job 1. 启动airpak,如简介1.5中说明的那样,打开任务面板将自动开启2. 为你的任务取一个名字(a) In the Select the job to open text box, type /office at the end of the path. 在选择任务打开文字框内,输入/office在路径的最后(b) Click Accept. 点击接受Airpak will create a default room with the dimensions 10 m 3 m 10 m, and display the room in the graphics window. Airpak将创建一个默认的尺寸为10x3x10的房间,并放置在图形窗口内。
You can rotate the room around a central point using the left mouse button, or you can translate it to any point on the screen using the middle mouse button. You can zoom into and out from the room using the right mouse button. To restore the room to its default orientation, click on Orient in the Options menu and select Home from the Orient drop-down list. 左键围绕一个中心点旋转物体,你还可以用鼠标中键将它移动到任意一点,鼠标右键可以放大缩小视窗来进入或者退出房间如果想把房间保存在默认位置,点击选项(Options)菜单中的确定方向(Orient)按钮,在下拉菜单中选择房间(Home)。
3. Modify the overall problem definition to include the effects of chemical species mixing and turn on the ideal gas law. 修改总尺寸问题,定义包括化学混合种类和打开理想气体定律File Problem (a) Select On next to Species and click Edit. Airpak will open the Species definitions panel. 选择ON在Species项点击编辑Airpak将打开种类定义(Species definitions)面板i. Set the Initial concentration of h2o to 50. ii. Select RH from the menu to the right of the Initial concentration field for h2o. RH is the relative humidity of the air in the room specified as a percentage. iii. Click Accept. 1选择水的初浓度(Initial concentration)为502在初浓度组的右边菜单将水的参数设定为RH,RH是房间里的相对湿度百分比。
3点击接受(Accept)(b) Under Gravity vector, click the Advanced button. The Advanced problem setup panel will open. i. Turn on the Ideal gas law option and the Oper. density option and keep the default values for the operating pressure and density. ii. Click Accept.(c) Keep the default settings for all other parameters in the Problem setup panel. (d) Click Accept to save the new settings. 在重力矢量(Gravity vector)下点击高级( Advanced)按钮 将打开高级问题设定面板1打开理想气体定律(Ideal gas law)选项,工作密度(Oper. Density)选项,工作压力和工作密度保持默认值。
2点击接受(C)保持问题设置(Problem setup)面板下的所有参数为默认d)点击接受(Accept)以保存新的设置Step 2: Build the Model 创建模型To build the model, you will first resize the room to its proper size. Then you will create the features of the room, including people (2), computers (2), lights (6), tables (2), a ventilation return and input diffuser, a radiator, a partition, and walls. 创建模型,你需要调整房间尺寸到合适程度,然后创建房间的容貌,包括人(2个),电脑(2台),灯(6个),桌子(2张)一个回风口(ventilation return )和一个输入出风口(input diffuser)一个散热器(radiator)一个隔断(partition,),和一堵墙1. Resize the default room. 调整默认房间尺寸Model Room (a) In the room Edit panel, enter the following coordinates: 在房间编辑(Edit)面板,进入下面的坐标。
xS0yS0zS0xE5yE3zE-4(b) Click Modify to resize the room. (c) Click on Orient in the Options menu and select Isometric from the Orient drop-down list to show an isometric view of the room scaled to fit the graphics window. Note: The walls of the room are adiabatic and do not participate in radiation, by default. To include radiation effects at the boundaries of the room, you will define wall objects at the boundaries later in this step. (b)点击修改(Modify)来调整房间点击 选项(Options)菜单的确定 方向(Orient )按钮,在下拉菜单中选择轴侧(Isometric )来三维显示并将房间缩放到适应窗口。
备注:房间内的墙体是绝热的,默认不参与辐射的计算包括房间边界内的辐射效应,你可以在下面的步骤中定义墙体 2. Create the first person in the workspace. Note: There is a Person object in Airpak; however, for this simulation, the representation of the people will be simplified, i.e., the people will be represented by hollow blocks that are energy sources. Tutorials 2 and 3 will 。












