{"id":37373,"date":"2019-08-28T18:05:48","date_gmt":"2019-08-28T18:05:48","guid":{"rendered":"\/forum\/forums\/topic\/adding-source-terms-in-multiphase-flow-mhd-model\/"},"modified":"2019-08-28T18:05:48","modified_gmt":"2019-08-28T18:05:48","slug":"adding-source-terms-in-multiphase-flow-mhd-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/adding-source-terms-in-multiphase-flow-mhd-model\/","title":{"rendered":"Adding Source Terms in Multiphase Flow MHD model"},"content":{"rendered":"

Hello,<\/p>\n

<\/p>\n

We are currently working on running an MHD model which incorporates the ocean, atmosphere, and seafloor. We found that when running models with the atmosphere, the magnetic signal between the air and sea does not make sense. We are guessing it may be due to the following (found in the Fluent Theory Guide):<\/p>\n

<\/p>\n

 <\/p>\n

<\/p>\n

For multiphase flows, assuming that the electric surface current at the interface between phases can be ignored, the electric conductivity for the mixture is given by:<\/p>\n

<\/p>\n

<\/a> <\/p>\n

<\/p>\n

(2–28)<\/span><\/p>\n

<\/p>\n

where <\/span> and <\/span> are respectively the electric conductivity and volume fraction of phase <\/span>. <\/span> is used in solving the induction equations.<\/p>\n

<\/p>\n

Is there a way to incorporate a UDF to implement these ignored terms?<\/p>\n

<\/p>\n

Thanks,<\/p>\n

<\/p>\n

Alex<\/p>\n","protected":false},"template":"","class_list":["post-37373","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t