Floating Point Exception in DPM

- February 6, 2023 at 3:47 pm
  
  pavankonchada123
  Subscriber
  
  Hi Ansys,
  I am working on nucleation of water vapor to water through DEFINE_DPM_INJECTION_INIT
  It is working fine for certain timesteps and after that it is throwing floating point exception error. I tried reducing the time step size which is intially 0.001 and I have reduced to 0.0001.
- February 7, 2023 at 6:48 am
  
  SRP
  Subscriber
  
  Hi,
  I suggest to examine your mesh. This issue typically happens when the mesh has small parts in touch with larger ones. To prevent instability in the momentum balance and continuity equations, the element transitions must be smooth.
  Thank you
  Saurabh
- February 7, 2023 at 11:23 am
  
  pavankonchada123
  Subscriber
  
  Is there any specific metric apart from orthogonal quality and skewness, as these two are good( 0.12 ortho)
- February 7, 2023 at 1:50 pm
  
  SRP
  Subscriber
  
  Hi,
  You can also check model, parameters, boundary conditions.
- February 7, 2023 at 2:04 pm
  
  pavankonchada123
  Subscriber
  
  Everything is fine for many timesteps and on of sudden it is throwing error. I am stuck at this point I case setup is ok and mesh quality is fine
- February 8, 2023 at 5:50 am
  
  pavankonchada123
  Subscriber
  
  I am following dpm switch example from udf manual. Is this the correct way of giving user defined dpm law??
- February 8, 2023 at 5:52 am
  
  pavankonchada123
  Subscriber
  
  If it is correct when I am inserting the message statment in Define_DPM_Law it is not giving any output on console

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