[Carlen]

Hi foamers,

I am wondering if I could store a volVectorField for two consecutive previous timesteps and call it at current timestep. I know that I can output such a field at every time step using IOobject, but this is not efficient especially when I need to run thousands of steps.

Does anyone know if OpenFoam has the similar function of C_UDSI_M1 and C_UDSI_M2 in Fluent? How can I implement such a procedure.

Thank you in advance,
carlen

[Tushar@cfd]

Dear Carlen,

This is very interesting query

Please consider my comment as a hint (it's my guess/way of solving). I may not be very specific.

Try defining a counter which varies from 0 to 1. where 1 refers to previous iteration value and 0 refers to a value before previous iteration. Assign volVectorField variables for the respective counters. Access these variables inside your code.

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Best Luck!

[Carlen]

Thanks Tushar,

I manged to solve this problem by using e.g. U.oldTime() for the last timestep and U.oldTime().oldTime() for the timestep before last.

kind regards,
carlen

[Tushar@cfd]

Originally Posted by Carlen

Thanks Tushar,

I manged to solve this problem by using e.g. U.oldTime() for the last timestep and U.oldTime().oldTime() for the timestep before last.

kind regards,
carlen

Dear Carlen,

Thanks for sharing these information of inbuilt OpenFOAM functions with all.


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Best Regards!