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Old   March 4, 2011, 06:32
Default Pipe Flow Analysis
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Akshayy Garg
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Hi

I am a beginner in FLUENT. I was doing pipe flow analysis and having problems with the solution.

Problem.
Pipe - 5m long, 66.7 mm dia.
Inlet pressure - 60 bar (static).
Outlet pressure - 8 bar (static).
Fluid - air.
T -300 K.
To do flow analysis as well pressure exerted by fluid on walls.

Solution I did was:
I made a 3-D pipe in gambit and loaded it on FLUENT. I used the laminar conditions initially just to get an approximate result. air is considered incompressible. Pressure at inlet kept at 60 bar as well as static at 60 bar. Pressure at outlet kept at 8 bar.

I still do not get results with static pressure varying on wall from 4.7e12 to -2.93e12 which is not possible.

Plz help I am new to this.

Akshayy Garg
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Old   March 4, 2011, 08:49
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ThanhToan
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Quote:
Originally Posted by akshayygarg View Post
Hi

I am a beginner in FLUENT. I was doing pipe flow analysis and having problems with the solution.

Problem.
Pipe - 5m long, 66.7 mm dia.
Inlet pressure - 60 bar (static).
Outlet pressure - 8 bar (static).
Fluid - air.
T -300 K.
To do flow analysis as well pressure exerted by fluid on walls.

Solution I did was:
I made a 3-D pipe in gambit and loaded it on FLUENT. I used the laminar conditions initially just to get an approximate result. air is considered incompressible. Pressure at inlet kept at 60 bar as well as static at 60 bar. Pressure at outlet kept at 8 bar.

I still do not get results with static pressure varying on wall from 4.7e12 to -2.93e12 which is not possible.

Plz help I am new to this.

Akshayy Garg
Hi,

I think you need check your unit system which you used for your solution.
Hope help you.

Best regards,
Tran
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Old   March 4, 2011, 08:59
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Akshayy Garg
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I am using i-5 processor, 2 gb ram, win 7 home premium-32 bit
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Old   March 4, 2011, 09:57
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Quote:
Originally Posted by akshayygarg View Post
I am using i-5 processor, 2 gb ram, win 7 home premium-32 bit
Hi,

Your computer is so good for computation time. However, I mean that you need check unit solution such as SI,...
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