Aerofoil blockMesh
Can anyone tell me how an ideal block topology of an aerofoil mesh looks like. There are various types of grids like O, C and H and I am struggling to get an good aerofoil mesh.
I had a go on the C mesh but i am getting a lot of non orthogonal faces combined with big skew number. Anyone any idea ? 
blockMesh geometry
Hi
I am trying to create an aerofoil mesh using blockMesh but I am getting bad distribution around my leading edge. I am struggling to get orthogonality on the leading edge....... Any ideas about how the geometry should look like? 
BlockMesh
Has anyone an idea how a blockmesh structure for an aerofoil looks like.......I tried different blocking strategies but I am getting high skew number.
I appreciate any suggestions. Thanks 
NonOrtho faces blockMesh
hi there
i want to know if in openfoam is possible to get rid of the nonorthogonal faces .... below i have my mesh which failed to checkMesh i'll appreciate your help Create time Create polyMesh for time = 0 Time = 0 Mesh stats points: 8250 internal points: 0 faces: 16028 internal faces: 7780 cells: 3968 boundary patches: 5 point zones: 0 face zones: 0 cell zones: 0 Overall number of cells of each type: hexahedra: 3968 prisms: 0 wedges: 0 pyramids: 0 tet wedges: 0 tetrahedra: 0 polyhedra: 0 Checking topology... Boundary definition OK. Cell to face addressing OK. Point usage OK. Upper triangular ordering OK. Face vertices OK. Number of regions: 1 (OK). Checking patch topology for multiply connected surfaces ... Patch Faces Points Surface topology inlet 32 66 ok (nonclosed singly connected) outlet 124 250 ok (nonclosed singly connected) topAndBottom 124 250 ok (nonclosed singly connected) Airfoil 32 66 ok (nonclosed singly connected) frontAndBack 7936 8250 ok (nonclosed singly connected) Checking geometry... Overall domain bounding box (10 10.0078 0) (0.30998 0 0.1) Mesh (nonempty, nonwedge) directions (1 1 1) Mesh (nonempty) directions (1 1 1) Boundary openness (7.55518e19 8.54205e19 2.26297e16) OK. Max cell openness = 2.19942e16 OK. Max aspect ratio = 65.8488 OK. Minumum face area = 1.94491e05. Maximum face area = 0.386396. Face area magnitudes OK. Min volume = 1.94491e06. Max volume = 0.0386396. Total volume = 8.19545. Cell volumes OK. Mesh nonorthogonality Max: 73.7915 average: 7.97915 *Number of severely nonorthogonal faces: 3. Nonorthogonality check OK. <<Writing 3 nonorthogonal faces to set nonOrthoFaces Face pyramids OK. Max skewness = 2.56447 OK. Coupled point location match (average 0) OK. Mesh OK. End 
Greetings Andrei,
I'm a bit late on this, but I've merged your questions into a single thread. AFAIK, doing an aerofoil directly in blockMesh is a very complicated work of art! I'm not familiar with any tutorial that does this, but I do know the following:
Best regards, Bruno 
Hi Andrei, Hi Bruno,
Quote:
I managed to create a NACA0012 in blockMesh which was actually rather simple. Here is a link to a thread, which also contains the answer to your last question:  http://www.cfdonline.com/Forums/ope...naca0012.html post #5 has an example blockMeshDict which gives you a basic idea. In a nut shell:  use ctype mesh  use any offset calculator which is around on the internet for calculating an offset of your airfoil  use polyLine in your blockMeshDict to introduce your foil into the mesh I hope I could contribute regards 

All times are GMT 4. The time now is 04:48. 