Start implicit analysis at non-zero time

[jball1]

I am trying to solve a fluid structure interaction problem using a coupled eulerian lagrangian approach. Abaqus is the Lagrangian code that simulates the behavior of the structure.

For a period of time (we'll say 0.05 sec) where the structure is not loaded, I solve only the fluid, using the Eulerlian code. I then use both solvers to solve the rest of the problem. How do I get Abaqus to start it's initial increment at t = 0.05 sec, instead of t = 0.0 sec?

Thank you.

 

[IceBreakerSours]

I haven't used Abaqus in many years so I may be mistaken: Can you not simply create a new step at t=0.05 sec in which you use both solvers? I imagine you can't otherwise you would have already done it but I am still curious.

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[FEA way]

Which CFD software do you use for this coupled analysis ? Is it XFlow (from the same vendor as Abaqus) or something else ?