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Water flow due to natural convection in vertical pipe |
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April 15, 2018, 07:34 |
Water flow due to natural convection in vertical pipe
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Member
Audrius
Join Date: Apr 2015
Location: Kaunas
Posts: 30
Rep Power: 11 |
Hello dear colleagues,
I have simple problem, but I don't know how to solve it. I have a pipe, which side walls are heated. I would like to have top and bottom walls opened - it means 0 m/s velocity in the beginning of simulation. Due to the heat, water density should decrese near pipe walls and water starts to flow upward. Meanwhile, feedwater/new water from the bottom wall starts to flow inside the pipe due to natural convection. So, I set top and bottom wall as pressure-outlet, but water just fall down from top wall through the pipe and bottom wall. See Fig.: How to set conditions for top and bottom walls, that water through the bottom wall start to flow due to natural convections, which occurs inside a pipe? Thank You. Regards. Last edited by Audrius; April 15, 2018 at 09:34. |
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