Lagrangian particle tracking

  • Last Post 05 November 2018
  • Topic Is Solved
pnvk95 posted this 30 October 2018


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)?


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kkanade posted this 31 October 2018

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. 



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pnvk95 posted this 05 November 2018

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