LES flame ignition

- November 21, 2019 at 11:09 pm
  
  Ansan
  Subscriber
  
  I am running the LES simulation for the particle combustion(coal) using Smagorinsky-LIlly, dynamic stress model. I ran the simulation with the time step of 0.01sec and was able to ignite the flame. But once I converted the fully developed case with the time step of 0.01sec to 0.001sec the flame dies. What could be the possible reasons for the this behavior of flame with the time step?
- November 22, 2019 at 11:54 am
  
  Rob
  Ansys Employee
  
  Why did you drop the time step?
- November 22, 2019 at 10:39 pm
  
  Ansan
  Subscriber
  
  because higher time step didn't match the experimental results.

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