Ansys計算溫度場操作流程學(xué)習(xí)資料

1、精品文檔精品文檔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 te (iii type boundary condition). analyze the temperature distribution in t

2、he plate during the period of 2000s. 問題 1：考慮一個方向無限長的平板，初始溫度為t0，一段暴露在溫度為te的環(huán)境中，分析其在 2000s內(nèi)溫度分布情況。basic parameters基本物性參數(shù)geometry幾何： a=1 m, b=0.1 m material 材料： =54 w/moc, =7800 kg/m3, cp=465 j/kg oc loads載荷： t0=0 oc, te=1000 oc, h=50 w/m2oc jobname and directory settings 設(shè)置文件名、存儲路徑menu | file | change

3、 jobname menu | file | change directory preprocessing 前處理(1) define element type定義單元類型preprocessor | element type | add/edit/delete add: thermal mass | solid | quad 4node 55 (2) set material properties設(shè)置材料屬性preprocessor | material props | material models thermal: conductivity: isotropic kxx=54 therm

4、al: density=7800 thermal: specific heat=465 精品文檔精品文檔modeling 建模(1) create node 1建立節(jié)點 1 preprocessor | modeling | create | nodes | in active cs no.: 1, (x, y, z) = (0,0,0) (2) create node 12建立節(jié)點 12 preprocessor | modeling | create | nodes | in active cs no.: 2, (x, y, z) = (0,1,0) (3) fill between no

5、de 1 and 12在節(jié)點 1，12 間填充其余節(jié)點preprocessor | modeling | create | nodes | fill between nds number of nodes to fill: 10 spacing ratio: 1(均勻網(wǎng)格 ) (4) create node 1324 by copying 復(fù)制生成節(jié)點 1324 preprocessor | modeling | copy | nodes | copy pick all 選擇所有節(jié)點total number of copies: 2復(fù)制 2 份（包含原先的 1 份）x-offset: 0.1

6、設(shè)置 x 方向偏移量(5) create element 1生成單元 1 preprocessor | modeling | create | elements | auto numbered | thru nodes select 1, 13, 14, 2(with mouse) (6) copy element 210 by copying 復(fù)制生成其余單元preprocessor | modeling | copy | elements | auto numbered pick all 選擇所有單元total number of copies: 11復(fù)制 11 份（包含原先的 1 份）n

7、ode number increment: 1設(shè)置節(jié)點增量applying loads加載（設(shè)置邊界條件和初始條件）(1) apply convention loads on node 12 and 24 在節(jié)點 12，24 上加對流載荷preprocessor | loads | define loads | apply | thermal | convection | on nodes pick 12, 24 vali film coefficient: 50 換熱系數(shù)val2l bulk temperature: 1000 環(huán)境溫度(2) set initial temperature(

8、uniform temperature)設(shè)置初始條件（均勻溫度）solution | define loads | settings | uniform temp uniform temperature: 0 solution求解(1) set analysis type as transient 設(shè)置分析類型為瞬態(tài)分析solution | analysis type | new analysis transient 精品文檔精品文檔(2) set solution controls 設(shè)置分析控制參數(shù)solution | analysis type | sol n controls ” tra

9、nsient” 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 ls viewing results查看結(jié)果(1) timehist postpro時間歷程后處理器add data 添加數(shù)據(jù) : timehist postpro | add data: nodal so

10、lution: dof solution: nodal temperature: variable name: t1; node 1 variable name: t5; node 5 variable name: t9; node 9 variable name: t11; node 11 (2) list/graph 列表 /作圖select the variables選擇變量 : list data/ graph data (3) save image保存圖片menu | plotctrls | capture image: file | save as (4) general post

11、pro通用后處理器select the data of certain time選擇某一時刻的數(shù)據(jù) : general postpro | read results | by pick plot the contour map of temperature distribution繪制該時刻溫度分布等值線圖: general postpro | plot results | contour plot | nodal solu | nodal solution: dof solution: temperature (5) save image保存圖片menu | plotctrls | capt

12、ure image: file | save as (6) animate 生成動畫menu | plotctrls | animate | over time number of animation frames: 100 question 2: consider a solid cylinder with initial temperature t0. the top surface of the cylinder is exposed to the environment of which the temperature is te (iii type boundary conditio

13、n) and the other surfaces are heat insulation (ii type boundary condition). analyze the temperature distribution in the cylinder during the period of 1000s. 問題 2：考慮一個初始溫度為t0的圓柱體，一段暴露在溫度為te的環(huán)境中，其余界面視為絕熱，分析其在 1000s內(nèi)溫度分布情況。精品文檔精品文檔basic parameters基本物性參數(shù)geometry幾何： r=0.025 m, h=0.05 m material 材料： =25 w

14、/moc, =7800 kg/m3, cp=500 j/kg oc loads載荷： t0=25 oc, te=100 oc, h=100 w/m2oc jobname and directory settings 設(shè)置文件名、存儲路徑menu | file | change jobname menu | file | change directory preprocessing 前處理(1) define element type定義單元類型preprocessor | element type | add/edit/delete thermal mass: solid : brick 8n

15、ode 70 (2) set material properties設(shè)置材料屬性preprocessor | material props | material models thermal: conductivity: isotropic kxx=25 thermal: density=7800 thermal: specific heat=500 modeling 建模(1) create the cylinder model建立圓柱體模型preprocessor | modeling | create | v olumes | cylinder | solid cylinder wp x

16、: 0 wp y: 0 radius: 0.025 depth: 0.05 (2) adjust the view調(diào)整視圖right toolbar | isometric view (3) mesh 劃分網(wǎng)格preprocessor | meshing | meshtool smartsize(optional): mesh: select the cylinder選擇圓柱體精品文檔精品文檔applying loads加載(1) apply convention loads on the top 在上表面加對流載荷preprocessor | loads | define loads | a

17、pply | thermal | convection | on areas pick the top surface by mouse 選擇上表面 (用鼠標(biāo) ) vali film coefficient: 100 換熱系數(shù)val2l bulk temperature: 100 環(huán)境溫度(2) set initial temperature(uniform temperature)設(shè)置初始條件（均勻溫度）solution | define loads | settings | uniform temp uniform temperature: 25 solution求解(1) set ana

18、lysis type as transient 設(shè)置分析類型為瞬態(tài)分析solution | analysis type | new analysis transient (2) set solution controls 設(shè)置分析控制參數(shù)solution | analysis type | sol n controls ” transient” label: stepped loading ” basic” label: time at end of loadstep: 1000; automatic time stepping: on; time increment: 10; frequency: write every substep (3) solve求解solution | solve | current ls viewing results查看結(jié)果(1) general postpro通用后處理器select the data of certain time選擇某一時刻的數(shù)據(jù) : general postpro | read results | by pick plot the contour map of temperat