[Benxi]

Quote:

Quote from mlm on July 4, 2016, 09:20rnHello Benjamin,rnrnyou can orientate yourself to the bifurcation example for two-phase flow. Depending on which approach you use (Euler-Euler or Euler-Lagrange), choose the appropriate one.rnIf the information to your porous structure is contained in your geometry description (e.g. as stl-file), you can choose the material boundary for that domain.rnIf you want to model the porosity structure with a porous media model, use the PorousD3Q19Descriptor. More information about that you find in the User Guide.rnrnBest regards!

rnrnrnThank you! I will have a try.

[Benxi]

Quote:

Quote from robin.trunk on May 23, 2016, 08:39rnHi,rnrnI think this could be the same problem discussed in the topic “”Question about Cavity2d Example”” recently started by frankgao. Probably the points where the boundary can’t be set happen to be on the overlap?rnrnBest regardsrnRobin

rnrnrnThank you! I will go for a watch.

[Benxi]

Quote:

Quote from robin.trunk on May 23, 2016, 08:39rnHi,rnrnI think this could be the same problem discussed in the topic “”Question about Cavity2d Example”” recently started by frankgao. Probably the points where the boundary can’t be set happen to be on the overlap?rnrnBest regardsrnRobin

rnrnrnThank you! I will go for a watch.

[Benxi]

Hi,rnI think you set the seperate geometry in a same material number,try to set different material number.

[Benxi]

Quote:

Quote from lilianaxavier on May 12, 2016, 14:10rnHi,rnrnyou can use the slip boundary condition in a similar way as you use a velocity or pressure boundary conditions.rnYou can set as “”addSlipBoundary”” on the material number you desire to have this type of BC.rnrnBest regards.

rnrnHi!rnThank you for your reply and these days i have tried a lot of way and finally get it work now.rnFrom the fluid region graph i get, i think the addSlipBoundary function work well now ,but when i run my program as ./Program_name, the command window shows the warning as follow:rnWARNING: Bogus distance at (22,88): 1rnWARNING: Bogus distance at (21,88): 1rnWARNING: Bogus distance at (21,87): 1rnWARNING: Bogus distance at (21,86): 1rnWARNING: Bogus distance at (33,62): 1rnWARNING: Bogus distance at (34,62): 1rnrnrn[BoundaryConditionInstantiator2D] Warning: Could not addSlipBoundary (2, 118), discreteNormal=(0,0,0), set to bounceBackrn[BoundaryConditionInstantiator2D] Warning: Could not addSlipBoundary (2, 0), discreteNormal=(0,0,0), set to bounceBackrn[BoundaryConditionInstantiator2D] Warning: Could not addSlipBoundary (2, 118), discreteNormal=(0,0,0), set to bounceBackrn[BoundaryConditionInstantiator2D] Warning: Could not addSlipBoundary (2, 0), discreteNormal=(0,0,0), set to bounceBackrn[BoundaryConditionInstantiator2D] Warning: Could not addSlipBoundary (2, 118), discreteNormal=(0,0,0), set to bounceBackrn[BoundaryConditionInstantiator2D] Warning: Could not addSlipBoundary (2, 0), discreteNormal=(0,0,0), set to bounceBackrn[BoundaryConditionInstantiator2D] Warning: Could not addSlipBoundary (2, 118), discreteNormal=(0,0,0), set to bounceBackrnrnThese are just a part of the command tips.rnDo you know why?rnrnYour sincerely, Benxi.

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