Fluids

Fluids

Lagrangian particle tracking

    • pnvk95
      Subscriber

      Hello


      A study that I am trying to recreate tracks particles of 10 micrometer diameter in naturally convecting air in an enclosure.


      According to the paper I'm following, "solutions for the flow field and thermal conditions of the natural convection are obtained and then these results serve as inputs for the Lagrangian particle trajectory analysis."


      I ran a steady state simulation with just air and obtained convergent results. Then I enabled transient simulation, DDPM and defined a file injection and injection start time as 0s and stop time as 0.5s. I did not initialize the simulation. When I run the calculation, I get a "floating point exception" error at Node 0. Is there a different or better way to make sure I can follow the paper (in quotes above)?


      Thanks

    • Keyur Kanade
      Ansys Employee

      If you have loading less than 10% then please use only DPM.


      I think you need to use DDPM which is used more dense flows. 


      Regards,


      Keyur

    • pnvk95
      Subscriber

      Thank you. I switched to DPM and it is fine now.

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