同一个case更换网格后计算发散
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请教下各位老师,换了个其他模型的网格,网格数更多,条件全都一样,计算发散是为什么?有什么需要修改的吗?
原网格Create time Create mesh for time = 0 Time = 0 Mesh stats points: 16482 internal points: 0 faces: 32240 internal faces: 15760 cells: 8000 faces per cell: 6 boundary patches: 7 point zones: 0 face zones: 0 cell zones: 0 Overall number of cells of each type: hexahedra: 8000 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 inletTop 4 10 ok (non-closed singly connected) inletBottom 4 10 ok (non-closed singly connected) outletTop 4 10 ok (non-closed singly connected) walls 464 936 ok (non-closed singly connected) front 8000 8241 ok (non-closed singly connected) back 8000 8241 ok (non-closed singly connected) outletBottom 4 10 ok (non-closed singly connected) Checking faceZone topology for multiply connected surfaces... No faceZones found. Checking basic cellZone addressing... No cellZones found. Checking geometry... Overall domain bounding box (-3.88578e-16 2.27374e-15 0) (10 2 0.2) Mesh has 2 geometric (non-empty/wedge) directions (1 1 0) Mesh has 2 solution (non-empty) directions (1 1 0) All edges aligned with or perpendicular to non-empty directions. Boundary openness (-2.71051e-19 2.43945e-18 6.33e-17) OK. Max cell openness = 1.73472e-16 OK. Max aspect ratio = 1 OK. Minimum face area = 0.0025. Maximum face area = 0.01. Face area magnitudes OK. Min volume = 0.0005. Max volume = 0.0005. Total volume = 4. Cell volumes OK. Mesh non-orthogonality Max: 0 average: 0 Non-orthogonality check OK. Face pyramids OK. Max skewness = 1.77636e-13 OK. Coupled point location match (average 0) OK. Mesh OK. End
新网格
Create time Create mesh for time = 0 Time = 0 Mesh stats points: 486356 internal points: 0 faces: 968451 internal faces: 482097 cells: 241758 faces per cell: 6 boundary patches: 5 point zones: 0 face zones: 0 cell zones: 0 Overall number of cells of each type: hexahedra: 241758 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 198 398 ok (non-closed singly connected) OUTLET 198 398 ok (non-closed singly connected) TOP 1221 2444 ok (non-closed singly connected) WALL 1221 2444 ok (non-closed singly connected) frontAndBack 483516 486356 ok (non-closed singly connected) Checking faceZone topology for multiply connected surfaces... No faceZones found. Checking basic cellZone addressing... No cellZones found. Checking geometry... Overall domain bounding box (-3500 0 0) (10500 4000 15.7505) Mesh has 2 geometric (non-empty/wedge) directions (1 1 0) Mesh has 2 solution (non-empty) directions (1 1 0) All edges aligned with or perpendicular to non-empty directions. Boundary openness (9.7422e-20 2.77781e-17 4.16351e-14) OK. Max cell openness = 3.24713e-16 OK. Max aspect ratio = 629.147 OK. Minimum face area = 1. Maximum face area = 61981.3. Face area magnitudes OK. Min volume = 15.7505. Max volume = 976235. Total volume = 8.80452e+08. Cell volumes OK. Mesh non-orthogonality Max: 32.1987 average: 12.372 Non-orthogonality check OK. Face pyramids OK. Max skewness = 0.231851 OK. Coupled point location match (average 0) OK. Mesh OK. End