Lagrangian particle tracking

- October 30, 2018 at 10:31 pm
  
  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
- October 31, 2018 at 3:01 am
  
  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
- November 5, 2018 at 5:26 pm
  
  pnvk95
  Subscriber
  
  Thank you. I switched to DPM and it is fine now.

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