I am modeling additional variable (AV) flow in a turbulent flume but have run into the problem of significant dissipation of the AV before it reaches the developed turbulent section of the flume. The velocity profile can be seen in the attached image and analyzing the AV concentration as a result of advection is the primary goal, so this poses a problem. I was hoping someone could give me advice on creating an internal inlet to release the additional variable inside the geometry rather than at the face inlet the water enters from. This would allow the additional variable to immediately interact with the turbulent environment rather than only encountering a developed boundary layer after 5 seconds of dissipiation. I’ve tried doing this by creating a plane inside the geometry, sketching a circular inlet, splitting it from the plane and making it a named selection, but the face split is superimposed onto the outer face of the flume where the initial water inlet is. Do you know of any way to create an internal inlet within a geometry?<\/p>\n
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Another idea someone told me is that water from the outlet can be used for the inlet, which would allow for a turbulent environment to be present in the entire plume through recirculation. Again I’m not sure if this can be done or what steps to take. Any advice would be appreciated.<\/p>\n","protected":false},"template":"","class_list":["post-28104","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