I am trying to import a solution field into Fluent from STAR-CCM+. My goal is to run a transient scalar transport simulation with a uds equation in Fluent on a fixed steady-state flow solution I have already obstained in STAR-CCM+ . I am trying to avoid resolving the primary flow solution in Fluent because the primary flow solution has some custom models in STAR-CCM+ that would require a fair bit of time and effort to set up. <\/p>\n
I have successfully transfered over my mesh to Fluent. I have written my solution field from STAR-CCM+ to a csv file which I have reformatted and read into Fluent as a point data profile. I then specify the profile data to the respective solution field in the fixed values tab of the region. <\/p>\n
I then initialize the solution. After initializing, I display a contour of the velocity field to check the values it shows zero (the initial condition).<\/p>\n
I run the flow solver to compute the face fluxes. I display the velocity contour again, it is now showing the correct velocity field profile data. I checked the steady state mass balance of the flow (it is a cavity with one inlet and one outlet). The outlet is off by about 5% of the inlet. The mass balance does not improve with subsequent iterations. <\/p>\n
Is this the right way of going about doing this? I have not used ‘fixed values’ in Fluent before but it is my understanding that the solver should calculate conservative fluxes from the fixed velocity. <\/p>\n
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