Flat Plate Boundary Layer

Problem Specification
1. Create Geometry in GAMBIT
2. Mesh Geometry in GAMBIT
3. Specify Boundary Types in GAMBIT
4. Set Up Problem in FLUENT

5. Solve!

6. Analyze Results

7. Verify Results

Step 5: Solve!

Solve > Control > Solution

We'll use a second-order discretization scheme. Under Discretization, set Momentum to Second Order Upwind.

solve1

Click OK.

Solve > Initialize > Initialize...

Use the inlet conditions as our intial guess value. Select inlet under Compute From.

Click Init.

We'll iterate the solution until the residual for each equation falls below 1e-6.

Solve > Monitors > Residual...

Set Absolute Criteria for all equations to 1e-6.

residual

Also, under Options, select Plot. This will plot the residuals in the graphics window as they are calculated, giving you a visual feel for if/how the iterations are proceeding to convergence.

Click OK.

Main Menu > File > Write > Case...

This will save your FLUENT settings and the mesh to a "case" file. Type in plateBL.cas for Case File. Click OK.

Solve > Iterate

Set the Number of Iterations to 1000. Click Iterate.

The residuals for each iteration are printed out as well as plotted in the graphics window as they are calculated.

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

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: Analyze Results