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Forum: FLUENT

November 9, 2009, 03:56

Replies: 11

Setting time step and number of time steps

Views: 28,994

Posted By srjp

As said by other members before, the optimum...

As said by other members before, the optimum timestep can be found by trial and error. It is best to start with a low timestep, run for few iterations. Check if there are no convergence problems,...

Forum: FLUENT

March 24, 2009, 08:59

Replies: 11

Setting time step and number of time steps

Views: 28,994

Posted By srjp

The time step you define, depends on the mesh and...

The time step you define, depends on the mesh and the velocities. i.e. the time step should be able to resolve the flow in the smallest cell.
As a rule of thumb, del t < del x / v
(del t = time...

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