{"id":163060,"date":"2021-10-13T13:09:08","date_gmt":"2021-10-13T13:09:08","guid":{"rendered":"\/forum\/forums\/topic\/enabling-gravitational-acceleration-option-in-horizontal-pipe-flow-heat-transfer\/"},"modified":"2021-10-19T10:45:24","modified_gmt":"2021-10-19T10:45:24","slug":"enabling-gravitational-acceleration-option-in-horizontal-pipe-flow-heat-transfer","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/enabling-gravitational-acceleration-option-in-horizontal-pipe-flow-heat-transfer\/","title":{"rendered":"Enabling gravitational acceleration option in horizontal pipe flow-heat transfer"},"content":{"rendered":"
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Hi all,<\/p>\n

So I am modelling a simple heat exchange design using Ansys Fluent but have a small doubt that I believe you could clarify for me. The design is provided below. A U-shaped pipe is embedded inside a sand layer and water is flowing inside the pipe. The pipe flow is horizontal and the sand is being heated from the top. So the heat is flowing vertically through the sand layer and heating the sand layer. Meanwhile, cold water is pumped into the pipe (from an external pump) and is flowing horizontally inside the pipe (turbulent flow conditions) while the heat from the warm sand layer will transfer to the flowing water through the pipe wall. <\/p>\n

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