Heat Transfer in Solid combined with HT Fluid: Problems

Hi dear members,
Please I am working on a heat transfer case where I have to show the heat transfer in the fluid and on the mateial. the first one in fluid is done, but the latter on the solid is showing me the picture of the good phenomena and NO VARIATION OF TEMPERATURE. So please I attached the file and if someone has a little time to take a look and help me, it will be greateful.

Thanks in advance and I looking forward to hear you

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A. Fopah Lele