time step and iteration

tony25800 · February 2, 2012, 09:33

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

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?

February 2, 2012, 09:33	time step and iteration	#1
tony25800 New Member Join Date: Feb 2012 Posts: 4 Rep Power: 14	Hi, I am a beginner in ANSYS FLUENT May I ask, what is the difference between time step and iteration? Thanks a lot.

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February 2, 2012, 12:16		#2
ghost82 Senior Member Rick Join Date: Oct 2010 Posts: 1,016 Rep Power: 26	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
vinamragehlot 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?