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Showing results 1 to 10 of 10 Search took 0.00 seconds. Search: Posts Made By: soonic

Forum: OpenFOAM Running, Solving & CFD April 16, 2012, 14:13

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic A little. What about new thread ? Describe... A little. What about new thread ? Describe what is your aim but first check some heat transfer tutorials and a solver suitable for your problem

Forum: OpenFOAM Running, Solving & CFD April 13, 2012, 04:43

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic yes, I used the same approach to initialize. ... yes, I used the same approach to initialize. If I wanted to drive the flow with 0.5Pa, I computed the velocity. The velocity would be ~0.9m/s. Check the Re, to identify the flow character. Then set...

Forum: OpenFOAM Running, Solving & CFD April 12, 2012, 10:03

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic i do not know if it is correct to use it like... i do not know if it is correct to use it like that, but i calculated dynamic pressure like: pd = rho/2 * U^2

Forum: OpenFOAM Running, Solving & CFD April 12, 2012, 06:28

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic Hi, I set the case like that: - I knew diameter... Hi, I set the case like that: - I knew diameter of pipe and wish to have Re in laminar/turbulent zone. (choose Re or compute limit velocity) - I computed velocity for Re - I computed dyn.pressure...

Forum: OpenFOAM Running, Solving & CFD April 3, 2012, 03:22

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic I tryed to set correct values for pressure to... I tryed to set correct values for pressure to have turbulent flow and set calculated values for k and eps and there is the case again. I still do not know, how big is your pipe. I just bet, that...

Forum: OpenFOAM Running, Solving & CFD April 2, 2012, 07:24

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic what is not working? descrbie more. Is your Re... what is not working? descrbie more. Is your Re in turbulent zone ? Try initialize the case with higher eps values and add approximate/correct values for k and eps at your BCs. the test case with...

Forum: OpenFOAM Running, Solving & CFD March 29, 2012, 11:33

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic yes, it do. Tried with 10Pa on inlet to have Re... yes, it do. Tried with 10Pa on inlet to have Re in turbulent zone.

Forum: OpenFOAM Running, Solving & CFD March 29, 2012, 09:43

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic try attached case with simpleFoam. It seems fine... try attached case with simpleFoam. It seems fine with your values on D=1cm pipe. (it is based on case_pipe_viscous_heating for mySimpleFoam solver found on that forum) edit: it is only...

Forum: OpenFOAM Running, Solving & CFD March 29, 2012, 08:47

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic what is the dimension of the p variable you have... what is the dimension of the p variable you have prediscribed ? check if it is not p/rho. And you have maybe correct solution for the wrong task.

Forum: OpenFOAM Running, Solving & CFD March 28, 2012, 12:50

Replies: 54 BC -> k e simpleFoam Views: 5,556 Posted By soonic Perhaps nothing is wrong. You fixed the... Perhaps nothing is wrong. You fixed the gradient, not the value.

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