|February 24, 2003, 13:25||
adiabatic walls yet enthalpy change
I've got flow through a pipe with a throat and adiabatic walls. The temperatures at inlet and outlet are equal, at 300K.
Presumably, under adiabatic conditions, with no work done on the flow within the pipe, I would not expect any change in the stagnation enthalpy of the fluid, right?
Yet, downstream of the throat, I get regions of higher stagnation temperature (~330K), which are then convected down the pipe.
Fluent reports that this is the converged solution, but I don't see how it makes sense!
Thanks in advance, if you are able to provide some valuable insight!
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