# time step and iteration

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 February 2, 2012, 10:33 time step and iteration #1 New Member   Join Date: Feb 2012 Posts: 4 Rep Power: 7 Sponsored Links Hi, I am a beginner in ANSYS FLUENT May I ask, what is the difference between time step and iteration? Thanks a lot.

 February 2, 2012, 13:16 #2 Senior Member     Daniele Join Date: Oct 2010 Location: Italy Posts: 998 Rep Power: 17 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

February 3, 2012, 05:33
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OK, I got it. Thank you !

Quote:
 Originally Posted by ghost82 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

 April 8, 2017, 00:27 #4 New Member     vinamra gehlot Join Date: Apr 2017 Location: Indai Posts: 2 Rep Power: 0 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?

 Tags fluent, fluent 12, iteration, time step

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