[cenglert]

Hi All,

I hope that this Thread will still stay alive. I am focusing on sediment transport scour processes around offshore structures, and have just decided upon OpenFOAM as a modeling tool. I am also interested in the CSDMS high performance computer cluster (HPCC) resource. http://csdms.colorado.edu/

Dr. Mark Schmeeckle has shared some great results with a version of openFOAM. Hoping to recreate some of them myself!
http://www.public.asu.edu/~mschmeec/

[Fanfei]

Originally Posted by Jackie Chen

SO u try to modify this solidparticleFoam to study the scour process? I am mainly focus on the flow field at this stage, havent modify the interfoam solver, i will try to study the solidaparticleFoam, keep in touch.

Dear:
I want to study local scour of bridge piers with openfoam to get my PHD degree. I saw some papers study this topic with interDyMFoam solver, such as Xiaofeng Liu. I have already add the bed shear stress into the interDyMFoam solver, but have some problem in how control the mesh motion. and what's the mean of The "Urel" in the interDyMFoam solver.

[Fanfei]

Originally Posted by Jackie Chen

Niels

Thanks again! I will take into account your considerations!

Investigate Scour with Openfoam is not new.

A company named Edenvale Young (http://www.edenvaleyoung.com/bridge_scour.php) is using interFoam to study scour around bridge pier.

Xiao Feng Liu is another expert using Openfoam for sdiemnt transport. A few paper described such efforts. if you are interested you can search online.

Thanks for your help again

Regards
Chen Long

Dear chen:
I want to simulated local scour of bridge piers. I want to coupled sediment transport with interDyMFoam solver. I'm now want to calculated the bed shear stress, the postprocessing wallshearstress is used. what method have you used to computed the bed shear stress?
Best Regards
Fan Fei

[ali_atrian]

hello every body
im new to openfoam
im studing to simulate "lagrangian sediment transport (bed load) in openfoam"
i have obtained the closest solvers as:
solidParticleFoam
settlengFoam
and
icolagrangianFoam
but these simulate whether individula particles (not a mass of particles) or suspended particles (not bed load) or injected particles!
does any one know any open code to help me simulating such a complex problem!!!
i really need help because after that i have to change the implemented lagrangian method to SPH!!!!

[tomdylan]

Just trying to revive the bedload/sediment transport thread:

Quite a bunch of research (Mei & Foda, 1981, Foda, 2003) has identified poroelastic effects like the generation of excess pore pressure, vertical and lateral displacement following water level variations as triggering force in the process of bedload transport.

Tian Tang has provided a poroelastic solver

https://bitbucket.org/tiantang/minigeotechfoam/src

which is able to reproduce those poroelastic effects. Interestingly, Tian Tang's approach considers gas bubbles occlusions in the bed matrix (via the fluid compressibility) which dramatically enhance the poroelastic response to wave pressure fluctuations.

I wonder weather somebody has yet started the OF solver coupling of a poroelastic, a flow and a sediment transport modules.

Any hints appreciated!

[John_22]

dear friend I,d like to simulate this and I,m freshman in OpenFOAM so how can I start????Where should start from?

[John_22]

Originally Posted by Jackie Chen

hello!I am a freshie and is trying to use OpenFOAM to simulate scour around monopile structure. I tried a few times by using the solver "InterFoam", I cannot get what I want. The scour process is complicated. May anyone help me and tell me how to figure it out. Thanks a billion.

Dear friend do you solve your problem?I,d like to simulate what you want to simulate......how can I start because I,m freshman in OpenFOAM

[Tina Ebrahimi]

Originally Posted by Jackie Chen

hello!I am a freshie and is trying to use OpenFOAM to simulate scour around monopile structure. I tried a few times by using the solver "InterFoam", I cannot get what I want. The scour process is complicated. May anyone help me and tell me how to figure it out. Thanks a billion.

Hello Jackie. I'm new to Openfoam and I want to simulate scouring around bridge pier. Can I ask you for some help?

[Tina Ebrahimi]

Any one can help??

[MaySea]

Hello everyone,

Can anybody clarify if the wall shear stress obtained by the wallShearStress function in OpenFoam can be used to evaluate sediment mobility by comparing against the critical shear stress calculated using the Shields parameter?

I'm only interested in simulating the flow over some seabed geometry to determine whether seabed scour is possible. No dynamic meshes or anything like that.

I am not sure what's the difference between the bed shear stress calculated in sediment-dynamics i.e.

Tb=rho*Cd*U2, where Cd is the drag coeff. and U is the depth averaged flow velocity

and the wall shear stress derived from the turbulence model in OpenFOAM.
Are they comparable?

I would appreciate any suggestions/help.