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Forum: OpenFOAM Pre-Processing

June 18, 2014, 04:02

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Hello Winson, I assume you already got a...

Hello Winson,

I assume you already got a proper mesh. However, to obtain a proper perturbation, I kind of cheated because I tried thousands of times using the perturbCylinder, and it did not work....

Forum: OpenFOAM Pre-Processing

April 25, 2014, 09:19

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Hello Aylalisa, First, thanks a lot for your...

Hello Aylalisa,

First, thanks a lot for your references. They are really helpful.

I may not be the best person to reply your questions since I am just becoming familiar with openFoam.

If...

Forum: OpenFOAM Pre-Processing

April 19, 2014, 04:59

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

[QUOTE=cedric_duprat;486826] I've ran such a case...

[QUOTE=cedric_duprat;486826] I've ran such a case few years ago. [Quote]

Hello Foamers,

I have been trying to obtain the averages of the velocity fields from the different time directories to...

Forum: OpenFOAM Pre-Processing

April 19, 2014, 04:48

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Thank you Cedric, Alexey and Dejan, I was...

Thank you Cedric, Alexey and Dejan,

I was finally able to get the turbulence. What I did was to first create turbulence in a square channel without bounded walls which fits within my pipe, and has...

Forum: OpenFOAM Pre-Processing

April 18, 2014, 06:35

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Thank you Cedric, I will try to do what you...

Thank you Cedric,

I will try to do what you suggest.

Regards,

Byron

Forum: OpenFOAM Pre-Processing

April 15, 2014, 05:17

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Thank you Dejan, I will also try to do what...

Thank you Dejan,

I will also try to do what you suggest.

Cheers.

Forum: OpenFOAM Pre-Processing

April 15, 2014, 03:47

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Thanks a lot Alexey. That was really...

Thanks a lot Alexey.

That was really helpful. I actually have grading in my mesh. I'll try to do what you recommend.

Cheers

Forum: OpenFOAM Pre-Processing

April 15, 2014, 00:17

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Hello Alexey, I already tried to use...

Hello Alexey,

I already tried to use the boxTurb application. It seems great since it uses the discrete Fourier transform. However, when I run it, I get this error.

Forum: OpenFOAM Pre-Processing

April 14, 2014, 08:11

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Thank you Alexey, I will try to do what you...

Thank you Alexey,

I will try to do what you recommend. About pipe flow, I am trying to simulate turbulent flow at different Reynolds numbers. This pipe has a 30*D length, and I am using cyclic...

Forum: OpenFOAM Pre-Processing

April 14, 2014, 04:57

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Thank you for your quick response Alexey, ...

Thank you for your quick response Alexey,

Yes, I have been adding Gaussian noise, I also used perturbU, and perturbCylinder, but still got no turbulence. Do you have any suggestions of what should...

Forum: OpenFOAM Pre-Processing

April 14, 2014, 04:09

Replies: 25

Preprocessing of Turbulent Pipe Flow

Views: 6,985

Posted By byrong

Preprocessing of Turbulent Pipe Flow

Hello Foamers,

I'm quite new at CFD and OpenFOAM. I am trying to simulate turbulent pipe flow using the channelFoam solver. My case was set using channel395 as a base. At first, I tried to get...

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