CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLOW-3D (
-   -   Pile scouring (

hans_ina February 4, 2010 09:47

Pile scouring
Dear All,

I should modeling scouring around cylinder pile, but i have problem with depth of sediment(soil) i cant find where the input for the depth of soil and B.C at boundaries tab for input.

thank so much!

Ghirghidov February 4, 2010 10:04

That is not there. it's in the Initial for fluid 2

hans_ina February 4, 2010 19:47

dear Ghirghidov,

you mean fluid region? i have add fluid region and add value for suspended sedimentation but after run simulation there is no sediment elevation.

Or you mean, i have to definition for 2 fluid region?

thank you


Ghirghidov February 5, 2010 11:47

Dear Hans.

Yes that's exactly what I mean but in postprocessing you have to check out SS as concentration. Unfortunately you will not be able to see river bottom (for example). :-(

hans_ina February 5, 2010 21:34

dear Ghirghidov,

I use F3d 9.3, i can see the sediment as packed sediment concentration and my problem now is why all sediment are uplift in all areas, not around circular piles? i use 1m/s velocity for 0.6m diameter piles. Am I wrong in boundaries?

Ghirghidov February 8, 2010 06:22

I am not sure that using velocity boundary is correct. I believe you have to use water level (pressure) at boundaries.

cdf_roli March 15, 2010 09:58

Hi hans_ina

In FLOW-3D Version 9.4 you have define a componment or you input a stl-file.
Then you can edit the componment proporties to "packed sediment".


pourahmadiii April 6, 2010 02:53

i must medel scour around bridge can any one help me?
i need a help for using flow 3d v 9.3

All times are GMT -4. The time now is 23:24.