Learning Forum

[zoelle.wong]

We are modelling fluid inside a converging nozzle which houses a separate anode and cathode. When these electrodes separate, a 20 MW arc is generated. This arc is hot enough to ionize the surrounding fluid which results in plasma, shocks, an induced magnetic field and a fluid chase change. Our fluid simulations are done with fluent, however we need another module that can model the ionization effects. When reading literature, we saw that people have used ANSYS Fluent with ANSYS EMAG coupled through MpCCI: https://iopscience.iop.org/article/10.1088/1361-6463/aa560e/pdf 

Other people have used the Fluent MHD module with a known source term for UDF’s in the momentum and energy conservation equations, however they assumed the plasma was a continuum and did not account for non-equilibrium effects. We are interested in modelling the plasma at all Knudsen numbers so we anticipate needing to link another physis module with a different scheme (e.g particle in a cell method, discrete Galerkin Method, hydro-kinetics) to our ANSYS Fluent model. Our top candidates are ANSYS Charge Plus however we are struggling with finding documentation to make an informed decision.

[Praneeth]

Hi Zoelle,

Thank you for reaching out to the Ansys learning forum.

Our team informed us that this question is addressed through a separate channel. We hope your query is addressed. Please let us know if you have any questions. 

Best regards,
Praneeth.