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Forum: FLUENT

March 19, 2012, 13:12

Replies: 10

Solver Settings for transient flow past circular cylinders

Views: 2,694

Posted By Amir

Dear Zigainer, The reason of suggesting...

Dear Zigainer,

The reason of suggesting ideal iteration per time step is different! 5-10 time step is ideal for reducing computational effort. Generally, the correct number of iteration per time...

Forum: FLUENT

March 19, 2012, 13:06

Replies: 10

Solver Settings for transient flow past circular cylinders

Views: 2,694

Posted By Amir

The trend is correct; after each time step it has...

The trend is correct; after each time step it has a jump. increase iteration per time step in a manner to decrease the residuals in each time step.

Bests,

Forum: FLUENT

March 19, 2012, 08:07

Replies: 10

Solver Settings for transient flow past circular cylinders

Views: 2,694

Posted By Amir

Non-iterative Time Advancement: In this...

Non-iterative Time Advancement: In this procedure, the equations are solved sequentially. As a general rule, these algorithms reduce the coupled nature of equations and may cause instabilities but...

Forum: FLUENT

March 19, 2012, 03:38

Replies: 10

Solver Settings for transient flow past circular cylinders

Views: 2,694

Posted By Amir

Dear Mahindra, Regarding the solver...

Dear Mahindra,

Regarding the solver settings, for such range of Re No. in vortex shedding (~90) the pressure based algorithm is adequate. The other settings which can help are:
- set Green-Gauss...

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