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Flow through Buried and above ground Piping

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Old   May 12, 2017, 01:21
Default Flow through Buried and above ground Piping
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Niveshram
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Dear All,

I am trying to find the drop in temperature for a cross country pipeline.

The data available with me include:

The pipe traverses both above and below ground

Below ground depth is 2.5 m between Centre line elevation of pipe and ground surface

FG el 3.5 m
Cl El of Pipe 1.0 m
BOP el is -0.321 m

Pipe Radius is 2.6 m (ID)

The ambient temperature of air surroundings maximum is 40 C

The fluid inlet temperature is 35 C

Inlet mass flow rate is 8393.06 Kg/s

Above ground ambient temperature is 40 C


Can someone tell me whether the Boundary conditions I have used are fine or not.

I am a newbie with CFD.


above ground wall.jpg

Buried Wall.jpg

Outlet.jpg

Geom.jpg

Domain.jpg
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Old   May 12, 2017, 01:30
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Niveshram
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Quote:
Originally Posted by nniveshram View Post
Dear All,

I am trying to find the drop in temperature for a cross country pipeline.

The data available with me include:

The pipe traverses both above and below ground

Below ground depth is 2.5 m between Centre line elevation of pipe and ground surface

FG el 3.5 m
Cl El of Pipe 1.0 m
BOP el is -0.321 m

Pipe Radius is 2.6 m (ID)

The ambient temperature of air surroundings maximum is 40 C

The fluid inlet temperature is 35 C

Inlet mass flow rate is 8393.06 Kg/s

Above ground ambient temperature is 40 C


Can someone tell me whether the Boundary conditions I have used are fine or not.

I am a newbie with CFD.


Attachment 55963

Attachment 55964

Attachment 55965

Attachment 55966

Attachment 55968

Can someone help me with the BC for wall, and how to calculate the heat transfer coefficient value .. or should we specify the constant wall temperature
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Old   May 18, 2017, 14:23
Cool CFD help
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dr marco guevara
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hi , your system looks pretty ineteresting, i think i can help you, just write to me maguevaral@ssengineering.com.co
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