Hi all!
I just realized that the thermal boundary condition for mass flow inlets requires total temperature. I usually just typed in the design static temperature, and it would not change a whole lot having studied slow gaseous flows.<\/p>\n
But when I’ll be studying faster, compressible flows, one hand I have Fluent asking me this piece of information, on the other hand my hard input data might be just static temperature and mass flow rate; inferring what the stagnation temperature (hence velocity, hence density) might be is not trivial.
So, my question here is not really about CFD, more like plain fluid dynamics: how would you suggest to proceed?
Would you typically do some test runs to figure out the ballpark of the stagnation temperature contribution, or would you do some pen-and-paper estimation?
Or again, do you ever happen to have total temperature as actual hard design input data?<\/p>\n
I want to stress again that this might not really be a question about Fluent per se, as much as about your experience as engineers plugging in boundary conditions.
Of course I’d be better off just using the static temperature, but I can very much guess that the solution needs the broader instruction brought by the total one.<\/p>\n","protected":false},"template":"","class_list":["post-379859","topic","type-topic","status-publish","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