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Boundary condition for flow through CD nozzle |
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New Member
Rahul
Join Date: Jun 2019
Location: Pune
Posts: 23
Rep Power: 7 ![]() |
hello everyone,
I am simulating the arc in CD nozzle. the boundary conditions are given as follows: inlet- guage total pressure 10 bar & 300k outlet - guage static pressure 3 bar & 300k cathode - current density 6.5e+07 A/m2 anode - is kept at zero potential i have prepared UDF code for properties of working fluid and sources and that works fine for other problems, hence no issue with UDF. but i think, i'm doing some mistake during case setup. and due to that error comes as DIvergence detected in AMG solver: Temperature to get rid of this i've tried 1) using reduced values of URF 2) replace existing mesh with fine and good quality mesh 3) using coupled solution method instead of SIMPLE immeddiate help will be greatly appreciated. thanks ![]() |
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Tags |
arc simulation, boundary condition, compressible flow, divergence amg solver |
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