When you set the number of time steps under the calculation tab, does this actually affect the simulation solution? I know time step size does, but how does setting the number of time steps influence the simulation?

See this ANSYS help link: help/wb_sim/ds_Apply_Loads_Supports_step.html . For a linear static analysis the only effect is how many solution are done for that load step. For example if the end time is 1.0 and you do 2 load steps with ramped loads then you solve with half the load at time of .5 and then at full load at time of 1.0. For a nonlinear or transient the loading is split in the same way but it affects convergence plus in a transient there are time dependent items such as velocity and acceleration.

In Fluent the number of time steps determines how much time the model will simulate: ie you set a time step size and then solve a number of these steps.

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## Comments

See this ANSYS help link: help/wb_sim/ds_Apply_Loads_Supports_step.html . For a linear static analysis the only effect is how many solution are done for that load step. For example if the end time is 1.0 and you do 2 load steps with ramped loads then you solve with half the load at time of .5 and then at full load at time of 1.0. For a nonlinear or transient the loading is split in the same way but it affects convergence plus in a transient there are time dependent items such as velocity and acceleration.

In Fluent the number of time steps determines how much time the model will simulate: ie you set a time step size and then solve a number of these steps.