Ansys计算温度场操作流程.docx

Instruction of Ansys temperature field calculationQuestion 1： Consider an infinite (in one direction) plate with initial temperature T0One end of the plate is exposed to the environment of which the temperature is Te (III type boundary condition). Analyze the temperature distribution in the plate during the period of 2000s问题1：考虑一个方向无限长的平板，初始温度为T0，一段暴露在温度为Te的环境中，分析其 在2000s内温度分布情况12 24Basic parameters基本物性参数Geometry 几何:a=1 m, b=0.1 mMaterial 材料:久=54 W/m・oC，p=7800 kg/m3, cp=465 J/kg・oC Loads 载荷:T0=0 oC, Te=1000 oC, h=50 W/m2：CJobname and directory settings 设置文件名、存储路径Menu I File I Change JobnameMenu I File I Change DirectoryPreprocessing 前处理(1) Define Element Type 定义单元类型Preprocessor I Element Type I Add/Edit/DeleteAdd: Thermal Mass I Solid I Quad 4node 55(2) Set Material Properties 设置材料属性 Preprocessor I Material Props I Material Models Thermal: Conductivity： Isotropic KXX=54 Thermal: Density=7800Thermal： Specific Heat=465Modeling 建模(1) Create Node 1建立节点 1Preprocessor I Modeling I Create I Nodes I In Active CSNo.： 1， (x, y, z) = (0,0，0)(2) Create Node 12建立节点 12Preprocessor I Modeling I Create I Nodes I In Active CSNo.: 2， (x， y, z) = (0，1,0)(3) Fill Between Node 1 and 12在节点 1，12间填充其余节点Preprocessor I Modeling I Create I Nodes I Fill Between Nds Number of nodes to fill： 10Spacing ratio: 1(均匀网格)(4) Create Node 13 〜24 by copying 复制生成节点 13~24Preprocessor I Modeling I Copy I Nodes I CopyPick All选择所有节点Total number of copies: 2复制 2 份(包含原先的1 份)X-offset： 0。

1设置X方向偏移量( 5) Create Element 1 生成单元 1Preprocessor I Modeling I Create I Elements I Auto Numbered I Thru Nodes Select 1， 13, 14, 2(with mouse)(6) Copy Element 2~10 by copying 复制生成其余单元Preprocessor I Modeling I Copy I Elements I Auto NumberedPick All选择所有单元Total number of copies： 11 复制 11 份(包含原先的 1 份)Node number increment: 1 设置节点增量Applying Loads 加载(设置边界条件和初始条件)( 1) Apply convention loads on Node 12 and 24 在节点 12，24 上加对流载荷 Preprocessor I Loads I Define Loads I Apply I Thermal I Convection I On Nodes Pick 12， 24VALI Film coefficient： 50 换热系数VAL2L Bulk temperature: 1000 环境温度(2) Set initial temperature (uniform temperature)设置初始条件(均匀温度)Solution I Define Loads I Settings I Uniform TempUniform Temperature： 0Solution 求解(1) Set Analysis Type as Transient设置分析类型为瞬态分析Solution I Analysis Type I New AnalysisTransient（2） Set solution controls 设置分析控制参数Solution I Analysis Type I Sol'n Controls ”Transient” Label: Stepped Loading"Basic” Label: Time at end of loadstep: 10000; Automatic time stepping: on； Time increment: 10； Frequency： Write every substep（3） Solve 求解Solution | Solve | Current LSViewing Results 查看结果（1） TimeHist Postpro 时间历程后处理器Add data 添加数据：TimeHist Postpro I Add data： Nodal Solution: DOF Solution： Nodal Temperature:Variable Name: T1； Node 1Variable Name： T5; Node 5 Variable Name： T9； Node 9Variable Name： T11; Node 11（2） List/Graph 列表/作图Select the variables 选择变量:List data/ Graph data（3） Save image 保存图片Menu | PlotCtrls I Capture Image： File | Save as（4） General Postpro 通用后处理器Select the data of certain time 选择某一时刻的数据：General Postpro | Read Results | By pickPlot the contour map of temperature distribution 绘制该时刻温度分布等值线图:General Postpro | Plot Results I Contour Plot I Nodal Solu I Nodal Solution： DOF Solution： Temperature（5） Save image 保存图片Menu I PlotCtrls I Capture Image： File I Save as（6） Animate 生成动画Menu | PlotCtrls I Animate | Over TimeNumber of animation frames: 100Question 2: Consider a solid cylinder with initial temperature T 0. The top surface of the cylinder is exposed to the environment of which the temperature is T e （III type boundary condition） and the other surfaces are heat insulation （II type boundary condition） 。

Analyze the temperature distribution in the cylinder during the period of 1000s.问题2：考虑一个初始温度为T0的圆柱体，一段暴露在温度为Te的环境中，其余界面视为绝 热，分析其在 1000s 内温度分布情况rjnBasic parameters基本物性参数Geometry 几何：r=0.025 m, h=005 mMaterial 材料:久=25 W/m・oC, p=7800 kg/m3, cp=500 J/kg・oCLoads 载荷：T0=25 oC, Te=100 oC, h=100 W/m2・oCJobname and directory settings 设置文件名、存储路径Menu I File I Change JobnameMenu I File I Change DirectoryPreprocessing 前处理(1) Define Element Type 定义单元类型Preprocessor I Element Type I Add/Edit/DeleteThermal Mass: Solid : Brick 8node 70⑵Set Material Properties设置材料属性Preprocessor I Material Props I Material ModelsThermal： Conductivity: Isotropic KXX=25Thermal: Density=7800Thermal： Specific Heat=500Modeling 建模(1) Create the cylinder model 建立圆柱体模型Preprocessor I Modeling I Create I Volumes I Cylinder I Solid CylinderWP X: 0WP Y: 0Radius: 0.025Depth： 0。

05(2) Adjust the view 调整视图Right Toolbar I Isometric View(3) Mesh划分网格Preprocessor I Meshing I MeshToolSmartSize (optional) : Mesh: select the cylinder 选择圆柱体Applying Loads 加载(1) Apply convention loads on the top 在上表面加对流载荷Preprocessor I Loads I Define Loads I Apply I Thermal I Convection I On AreasPick the top su。