{"id":51238,"date":"2021-01-13T13:34:22","date_gmt":"2021-01-13T13:34:22","guid":{"rendered":"\/forum\/forums\/topic\/boundary-condition-for-e-e-multiphase-model\/"},"modified":"2021-01-13T13:34:22","modified_gmt":"2021-01-13T13:34:22","slug":"boundary-condition-for-e-e-multiphase-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/boundary-condition-for-e-e-multiphase-model\/","title":{"rendered":"Boundary condition for E-E multiphase model"},"content":{"rendered":"

Hi nI am simulating fluid-granular flow using Eulerian model. nI want to ask about the B.C at the inlet for the two phases:nThe primary phase (fluid) has a defined velocity inlet, and the secondary phase has constant concentration (or volume fraction at the inlet, let say 4% (0.04)). nI used to specify the inlet fluid velocity and particle volume fraction while keeping particle inlet velocity at zero (because I thought that fluent will automatically calculate the particle velocity based on the volume fraction and the mass flowrate of the inlet fluid). However, i figured that this could be not correct and maybe the reason why I did not get reasonable results. nMy question: Shall I specify the particle inlet velocity as the same as the fluid velocity or i need to calculate the actual velocity of particle phase (as mentioned earlier based on Vf and Vf) and then use that velocity as inlet condition.Thanks in advance n<\/p>\n","protected":false},"template":"","class_list":["post-51238","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