1 hour simulation time

- September 12, 2023 at 8:15 am
  
  walaakm10
  Subscriber
  
  Hello
  
  I want to simulate a flood case for an hour, I mean, when the simulation ends, the final result should represent the flood status after one 1 hour of flood. For this, I set the number of time steps to 3600 and the time step size is 1. However, the simulation didn't converge, so I reduced the time step size to 0.01, and, accordingly, I changed the number of time steps to 360000. Is this correct?
- September 12, 2023 at 8:34 am
  
  Essence
  Ansys Employee
  
  Hello,
  If the simulation does not converge, please reduce the time step size more. But let me inform you. Non-convergence of the solution depends on other factors like mesh and case setup also.
- September 12, 2023 at 2:16 pm
  
  Rob
  Forum Moderator
  
  Yes, solution duration (model time) is time step size x number of time steps. As Essence comments you also need to converge each time step.
- September 13, 2023 at 12:42 am
  
  walaakm10
  Subscriber
  
  ok, thanks!