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-   -   time step and iteration (https://www.cfd-online.com/Forums/fluent/96834-time-step-iteration.html)

tony25800 February 2, 2012 09:33
time step and iteration
 
Hi, I am a beginner in ANSYS FLUENT

May I ask, what is the difference between time step and iteration?

Thanks a lot.

ghost82 February 2, 2012 12:16
Hi,
the time step is the delta time of the simulation, which corresponds to the real time.
Iteration is a cycle to reach a solution; in fact you can have multiple iterations per time step.

Daniele

tony25800 February 3, 2012 04:33
OK, I got it. Thank you !

Quote:
Originally Posted by ghost82 (Post 342492)
Hi,
the time step is the delta time of the simulation, which corresponds to the real time.
Iteration is a cycle to reach a solution; in fact you can have multiple iterations per time step.

Daniele

vinamragehlot April 8, 2017 00:27
thank you, so if i choose step size as 0.0001 and time step=100 with 100 iterations, at what time should i expect the result to stop, is it simple multiplications? like 100*100=10,000 iterations?


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