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Author: John Singleton and Rajesh Bhaskaran, Cornell University

Problem Specification
1. Pre-Analysis & Start-up
2. Geometry
3. Mesh
4. Setup (Physics)
5. Solution
6. Results
7. Verification  & Validation

Under Construction

This page of this tutorial is currently under construction. Please check back soon!!!!!!!!!!!!!!

Useful Information

Click here for the FLUENT 6.3.26 version.

Step 5: Solution

Second Order Scheme

A second-order discretization scheme will be used to approximate the solution. In order to implement the second order scheme click on Solution Methods then click on Momentum and select Second Order Upwind as shown in the image below.


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Set Convergence Criteria

FLUENT reports a residual for each governing equation being solved. The residual is a measure of how well the current solution satisfies the discrete form of each governing equation. We'll iterate the solution until the residual for each equation falls below 1e-6. In order to specify the residual criteria (Click) Monitors > Residuals > Edit..., as shown in the image below.


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Next, change the residual under Convergence Criterion for continuity, x-velocity,and y-velocity, all to 1e-6, as can be seen below.


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Lastly, click OK to close the Residual Monitors menu.

Set Initial Guess

Here, the flow field will be initialized to the values at the inlet. In order to carry out the initialization click on Solution Initialization then click on Compute from and select inlet as shown below.


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Then, click the Initialize button, . This completes the initialization process.







To run the simulation go to:

Solution > Run Calculation

Set the Number of Iterations to 1000. Click Calculate.

Note: There is a bug on FLUENT and you might need to double or triple click the Calculate button to start the simulation.

The residuals for each iteration are printed out as well as plotted in the graphics window as they are calculated and the calculation should converge in about 561 iterations.

Save the solution to a data file after solution is converged by going to:

Main Menu > File > Write > Data...

Enter plateBL.dat for Data File and click OK. Check that the file has been created in your working directory. You can retrieve the current solution from this data file at any time.

Go to Step 6: Results

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