[Idiom_1]

Hello Dear Users,

i would like to ask you, what did i made wrong if in my simulation of fluid flow (as tube) through solid body only fluid get temperature from solid body.
What i mean, i have got aluminium body with hole inside, and there is fluid zone. I made simulation that fluid flows through that hole in aluminium. I made aluminium temperature about 900K and water 300K. In my results I see water at begin got 300K and in outlet about 600K, and that looks cool. But the problem is, temperature of aluminium doesn't change even a bit. Still 900K. Is not possible, for usre water get some heat from aluminium. Have u got any ideas what i made wrong?

http://wrzucacz.pl/file/6861437146792

Please take a look at that model (it's really basic, and I guess for most of you it's so simply, i just spend more time at that problem and I know only theoretical informations, any moves forward...)

Thank you for any suggestions,
Have a nice time

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Of course I realize that water temperature 600K is a bit too high, but it doesn't matter about values at that moment, just want to make a complete simulation with heat flow in both sides not only solid->fluid.