Spray Cooling Issue

- November 17, 2020 at 2:57 pm
  
  System_delete
  Subscriber
  
  This discussion was created from comments split from: DPM modelling.
- November 17, 2020 at 2:17 pm
  
  Milhm
  Subscriber
  
  Hi,nnI am working on spray cooling.I want to spray water in a compressible flow.The stagnation pressure is 4Mpa and static pressure is 0.696Mpa.I set operating pressure to zero and i enter 4Mpa and 0.696Mpa in pressure inlet boundary conditions.I enabled species transport.In materials for mixture template, i select ideal gas for density, mixing law for Cp and Sutherland Law for viscosity.I use pressure swirl atomizer.nnAt the beginning of injection i recieve this error:# Divergence detected in AMG for pressure coupled: protective actions enabled!nn# Divergence detected in AMG for pressure coupled, temporarily solve with BCGSTAB!nnError: Divergence detected in AMG solver: pressure couplednnWhat should I do?what is wrong?.nnRegardsnnMiladn
- November 17, 2020 at 2:58 pm
  
  DrAmine
  Ansys Employee
  
  Add more information about your case and switch off injection at first. Run single phase!n