comsol tutorial - problem 2

7/22/2019 Comsol Tutorial - Problem 2

1/18


2/18

Start Comsol Multiphysics

In the model navigator, select the Incompressible Navier-Stokesapplication mode and click the

Multiphysics button


3/18

In the Multiphysicswindow click the Add button

Select the Convection and Conductionapplication mode then click the Addbutton again.

Select OK.


4/18

Go to the Optionsmenu and select Constants

Define the following constants


5/18

Hold down the shift key and click the Rectangle/Square button

Define the rectangle as shown below

At the top of the screen, select the Zoom Extentsbutton

The rectangle R1 appears


6/18

In the Multiphysicsmenu select Incompressible Navier-Stokes (chns)

In the Physics menu select Subdomain Settings

Under Subdomain selectionselect 1, enter the following Fluid properties and click OK.


7/18

In the Physics menu select BoundarySettings

Select each boundary and enter the corresponding boundary conditions

Select OK.


8/18

In the Multiphysicsmenu select Convection and Conduction (chcc)

In the Physics menu select Subdomain Settings

Under Subdomain selectionselect 1and enter the following Thermal properties.


9/18

On the Inittab enter the following initial value

Click OK.

In the Physics menu select BoundarySettings

Select each boundary and enter the corresponding boundary conditions


10/18

Click OK.

Under the Meshmenu select Free Mesh Parameters

Under the Global tab select Extra finefor the Predefined mesh sizesand select OK.


11/18

At the top of the screen click the Initialize Mesh button

Then click the Refine Mesh button twice

At the bottom of the screen you should see

Click the solve button

For a larger image, Go to the Optionsmenu and select Axes/Grid Settings


12/18

On the Axistab

Clear the tick for Axis equaland set y minand y maxas shown then Click OK.

Note the maximum velocity


13/18

In the Postprocessing menu, select Plot Parameters

Click the Surfacetab

Under the Predefined quantitiesdrop down menu, select Convection and Conduction (chcc)then select

Temperature

Click OK.


14/18

In the Postprocessingmenu, select Cross-Section Plot Parameters


15/18

Click the Line/Extrusiontab.

Under the Predefined quantitiesdrop down menu, select Convection and Conduction (chcc)then select

Temperature

On the x-axis datadrop down menu select x.

Enter the Cross-section line dataas shown below.

Set the Line resolutionto 11.

Click Apply thenclick OK.


16/18

On Figure 1, click the Export Current Plotbutton and savethe file as shown below


17/18

Open Microsoft Excel 2007 and select the office icon then Open

Select Text Filesfrom the drop down menu.

Browse to the location that you saved the file and click on it then select Open.


18/18

Select Fixed widththen select Finish.

comsol tutorial - problem 2

Documents