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5. Solution

Convergence Criterion: Turn off Drag, Turn on Lift

Solution > Monitors > Drag > Edit.... Then uncheck Print to Console and uncheck Plot. Click ok.

Solution > Monitors > Lift > Edit.... Then check Print to Console, Plot and Write. Click ok. The last option writes the lift coefficient data to a file that is buried in one of the subfolders that FLUENT creates in the working folder. You'll have to dig around to find it.

Solution Initialization & Patching

Adapt > Region.... Then set X Min to 0.5 m, set X Max to 32 m, set Y Min to 0 m, and set Y Max to 32m. Click Mark then click Close.

Solution > Solution Initialization. Set Compute From to farfield1.. Click Initialize. Next, click Patch. Complete the patching menu as shown below.



Click Patch,then click close.

Advance Solution in Time

Solution > Run Calculation. Set Time Step Size to 0.2 seconds and set the Number Of Time Steps to 200. Now, click Calculate. (You may have to hit Calculate twice.) Now, have a cup of coffee. Continue the time-stepping until you get sinusoidal variation in the lift coefficient.

Save Project



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