Ansys计算温度场操作流程
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Instruction of Ansys temperature field calculation
Question 1: Consider an infinite (in one direction) plate with initial temperature T0. One end of the plate is exposed to the environment of which the temperature is T e (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T e的环境中,分析其在2000s内温度分布情况。
Basic parameters基本物性参数
Geometry几何:a=1 m, b=0.1 m
Material材料:λ=54 W/m·o C, ρ=7800 kg/m3, c p=465 J/kg·o C
Loads载荷:T0=0 o C, T e=1000 o C, h=50 W/m2·o C
Jobname and directory settings设置文件名、存储路径
Menu | File | Change Jobname
Menu | File | Change Directory
Preprocessing前处理
(1) Define Element Type定义单元类型
Preprocessor | Element Type | Add/Edit/Delete
Add: Thermal Mass | Solid | Quad 4node 55
(2) Set Material Properties设置材料属性
Preprocessor | Material Props | Material Models
Thermal: Conductivity: Isotropic KXX=54
Thermal: Density=7800
Thermal: Specific Heat=465
Modeling建模
(1) Create Node 1建立节点1
Preprocessor | Modeling | Create | Nodes | In Active CS
No.: 1, (x, y, z) = (0,0,0)
(2) Create Node 12建立节点12
Preprocessor | Modeling | Create | Nodes | In Active CS
No.: 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 | Modeling | Create | Nodes | Fill Between Nds
Number of nodes to fill: 10
Spacing ratio: 1(均匀网格)
(4) Create Node 13~24 by copying复制生成节点13~24
Preprocessor | Modeling | Copy | Nodes | Copy
Pick 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1
Preprocessor | Modeling | Create | Elements | Auto Numbered | 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 | Modeling | Copy | Elements | Auto Numbered
Pick 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 | Loads | Define Loads | Apply | Thermal | Convection | On Nodes Pick 12, 24
V ALI Film coefficient: 50换热系数
V AL2L Bulk temperature: 1000环境温度
(2) Set initial temperature(uniform temperature)设置初始条件(均匀温度)Solution | Define Loads | Settings | Uniform Temp
Uniform Temperature: 0
Solution求解
(1) Set Analysis Type as Transient设置分析类型为瞬态分析
Solution | Analysis Type | New Analysis
Transient