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CFD problem (Fluent Ansys): Interface zones overlap for mesh interface contact_region_1

CFD problem (Fluent Ansys): Interface zones overlap for mesh interface contact_region_1

CFD problem (Fluent Ansys): Interface zones overlap for mesh interface contact_region_1

(OP)
Hello everybody,
I have two solids emerged in a pipe a guide van (plastic solid)and ceramic element, I want to set to the inlet of pipe an air velocity = 5 m/s and constant temperature = 20 °C.
and the initial temperature of the ceramic element and guide van (solid) is 0 °C.
I want to run the simulation as "transient" for 70 seconds and see the change of temperature comportment of the ceramic solid.
I fixed the problem of initialising temperature in Fluent with " patch" but now I have another problem when I clicked initialise I got this in consol:
" Info: Interface zones overlap for mesh interface contact_region_1
this could adversely affect your solution "
PS: the contact region is between the fluid and the ceramic element.

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