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Numerical Solution
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Author: John Singleton and Rajesh Bhaskaran Problem Specification |
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Solution
Second Order Upwind Momentum Scheme
Solution > Solution Methods > Spatial Discretization.
Set Momentum to Second Order Upwind
Convergence Criterion
{Solution > Monitors > Double Click) > Residuals > Edit....
Set the Absolute Criteria for continuity, x-velocity and y-velocity all to 1e-6. Click ok
{Solution > Monitors > Double Click) > Drag > Edit.... Create > Drag
NOTE: In ANSYS 18.2, implementing the drag monitor is slightly different. The pictures below do not match exactly with version 18.2. See this tutorial video for version 18.2.
Then check Print to Console and Plot. Click ok
...
Next, click cylinderwall, which is located under Wall Zones. Lastly, click ok
Initial Guess
Solution > Solution Initialization > Standard Initialization.
Set Compute From to farfield1. Alternately, you can simply set X Velocity to 1 m/s. Then, click Initialize.
Iterate Until Convergence
Solution > Run Calculation.
Set the Number of Iterations to 2000. Then, click Calculate. (You may have to hit Calculate twice.) Now, have a cup of coffee. The solution should converge after approximately 1600 iterations. NOTE: In newer versions of ANSYS, solution may converge in lesser number of iterations.
Save Project
Go to Step 6: Results
See and rate the complete Learning ModuleNumerical Results