Re: airfoil in OpenLB

[balzar29]

Hi robin,

thanks to your help now i can change shape in 2d cylinder example. This is the result for thin wing with no aerodynamic trailing or leading edge, just the shape!

Now my problems are in the boundery conditions. When i start the computation it gives me these errors after defining start parameters:

Code:

[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (0,29) ~ (1.04833,0.751667), in direction 8
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (1,29) ~ (1.05,0.751667), in direction 1
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (1,33) ~ (1.05,0.758333), in direction 3
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (0,33) ~ (1.04833,0.758333), in direction 4
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (0,29) ~ (1.04833,0.751667), in direction 7
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (1,29) ~ (1.05,0.751667), in direction 8
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (2,29) ~ (1.05167,0.751667), in direction 1
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (0,33) ~ (1.04833,0.758333), in direction 5
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (2,33) ~ (1.05167,0.758333), in direction 3
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (1,33) ~ (1.05,0.758333), in direction 4
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (1,29) ~ (1.05,0.751667), in direction 7
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (2,29) ~ (1.05167,0.751667), in direction 8
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (3,29) ~ (1.05333,0.751667), in direction 1
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (1,33) ~ (1.05,0.758333), in direction 5
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (3,33) ~ (1.05333,0.758333), in direction 3
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (2,33) ~ (1.05167,0.758333), in direction 4
[BlockGeometryStatistics2D:6] updated
[sOffLatticeBoundaryCondition2D:6] Cuboid globiC 6 finished reading distances for ZeroVelocity Boundary.
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (2,29) ~ (1.05167,0.751667), in direction 7
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (3,29) ~ (1.05333,0.751667), in direction 8
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (4,29) ~ (1.055,0.751667), in direction 1
[BoundaryConditionInstantiator2D:3] ERROR: no boundary found at (2,33) ~ (1.05167,0.758333), in direction 5
[BlockGeometryStatistics2D:2] updated
[BoundaryConditionInstantiator2D:2] ERROR: no boundary found at (240,427) ~ (1.44833,0.708333), in direction 6
[BoundaryConditionInstantiator2D:2] ERROR: no boundary found at (240,426) ~ (1.44833,0.706667), in direction 7
[BoundaryConditionInstantiator2D:2] ERROR: no boundary found at (241,426) ~ (1.45,0.706667), in direction 8
[BoundaryConditionInstantiator2D:2] ERROR: no boundary found at (242,426) ~ (1.45167,0.706667), in direction 1
[BoundaryConditionInstantiator2D:2] ERROR: no boundary found at (241,426) ~ (1.45,0.706667), in direction 7
[BoundaryConditionInstantiator2D:2] ERROR: no boundary found at (242,426) ~ (1.45167,0.706667), in direction 8
[BoundaryConditionInstantiator2D:2] ERROR: no boundary found at (243,426) ~ (1.45333,0.706667), in direction 1
[BoundaryConditionInstantiator2D:2] ERROR: no boundary found at (242,426) ~ (1.45167,0.706667), in direction 7

and so on, then the computation starts and gives results.

Have you some ideas? Thank!