Get temp error

mohrezk · July 29, 2018, 13:49

Hi
I have a simplified geometry of a port fuel CNG injector and whenever I change the base grid scale to a smaller one ( from 300000 cells to 600000 cells and more) this warning will show up ( extrapolating on the temp calculation) and after some iterations my runs will terminate by this error : something is wrong in function get_temp_from_massfrac: upper energy level must be greater than lower energy value
What should i do?
Thanks

chaighodke · August 10, 2018, 15:38

How much is the mass flow rate at the injector? How many parcels are you using? Did you try increasing number of parcels when you refined the mesh?

July 29, 2018, 13:49	Get temp error	#1
mohrezk New Member Join Date: Feb 2018 Posts: 3 Rep Power: 8	Hi I have a simplified geometry of a port fuel CNG injector and whenever I change the base grid scale to a smaller one ( from 300000 cells to 600000 cells and more) this warning will show up ( extrapolating on the temp calculation) and after some iterations my runs will terminate by this error : something is wrong in function get_temp_from_massfrac: upper energy level must be greater than lower energy value What should i do? Thanks

August 10, 2018, 15:38		#2
chaighodke New Member Chaitanya Ghodke Join Date: May 2017 Location: Convergent Science, Madison WI Posts: 29 Rep Power: 8	How much is the mass flow rate at the injector? How many parcels are you using? Did you try increasing number of parcels when you refined the mesh? __________________ --------------------------------------------- Chaitanya D. Ghodke, Ph.D. Senior Research engineer Convergent Science Inc. ---------------------------------------------

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