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Showing results 1 to 7 of 7 Search took 0.00 seconds. Search: Posts Made By: dradenkovic

Forum: OpenFOAM Running, Solving & CFD February 22, 2017, 04:00

Replies: 220 LES of turbulent channel flows Views: 62,291 Posted By dradenkovic Xu Bin, After using postChannel utility, I... Xu Bin, After using postChannel utility, I calculate friction velocity as $u_tau = \sqrt{\nu \frac{u_{fc}}{y_fc}}$. Index fc denotes first cell, and \nu is kinematic viscosity. About...

Forum: OpenFOAM Running, Solving & CFD February 21, 2017, 03:13

Replies: 220 LES of turbulent channel flows Views: 62,291 Posted By dradenkovic Xu Bin, Keep all settings the same as in my... Xu Bin, Keep all settings the same as in my previous attached file, just change delta to vanDriest and LESModel to Smagorinsky. These settings should be the same as settings which can be found...

Forum: OpenFOAM Running, Solving & CFD February 10, 2017, 14:31

Replies: 220 LES of turbulent channel flows Views: 62,291 Posted By dradenkovic Hello. I did LES Smagorinsky simulation... Hello. I did LES Smagorinsky simulation with van Driest damping and I obtained good results, for turbulent flow in channel. Then I wanted to try dynamic model and I tried dynamicKEqn. IAlso I...

Forum: OpenFOAM Running, Solving & CFD November 2, 2016, 05:49

Replies: 220 LES of turbulent channel flows Views: 62,291 Posted By dradenkovic If we say, that 200 flow through times, if we use... If we say, that 200 flow through times, if we use postChannel utility, is enough for obtaining converged velocity profile in channel (i.e velocity profile that is symmetric with very negligible...

Forum: OpenFOAM Running, Solving & CFD November 2, 2016, 05:23

Replies: 220 LES of turbulent channel flows Views: 62,291 Posted By dradenkovic Timofey, I see now that you replied to my... Timofey, I see now that you replied to my question about ten days ago. In the meantime, I solved problem. Instead of larger domain from my above post, I used smaller part of domain (similar...

Forum: OpenFOAM Running, Solving & CFD October 5, 2016, 12:28

Replies: 220 LES of turbulent channel flows Views: 62,291 Posted By dradenkovic I will describe my problem better. Real... I will describe my problem better. Real dimensions of channel that I am studying are 6 meters length, 35 mm is height and 350mm is width. In my LES simulation, I was watching only part of domain,...

Forum: OpenFOAM Running, Solving & CFD October 5, 2016, 08:42

Replies: 220 LES of turbulent channel flows Views: 62,291 Posted By dradenkovic Hello. Is it always necessary to average... Hello. Is it always necessary to average fields in LES of turbulent channel flow in for example 100 flow through times, formed with mean velocity and length of a channel? Sometimes it would take...

Showing results 1 to 7 of 7

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