A double turbine (hydroelectric power generation) was simulated under the following conditions:
Diameter = 1m, Height = 0.5m, Blade Shape = NACA0012, Chord Length = 0.2m, Rotation Region Radius = 1.6m, Rotation Region Height = 0.6m
The resulting mesh log was as follows:
****************************************************************************************************************
SimScale incorporates Simulation Modeling Suite(TM) software by Simmetrix Inc. © 1997-2026. All Rights Reserved.
****************************************************************************************************************
ra:v27720/pa:38_0_198/ps:380142/ma:v57560
****************************************************************************************************************
Model import took 500.742549ms.
Maximum precision of model and its entities: 1e-08 m.
Absolute small feature tolerance: 0.00010626585691826111 m.
Surface meshing took 52.567299083s.
Number of cells after 1m18.860588325s: 561288
Number of cells after 1m45.159876296s: 1043127
Number of cells after 2m11.418617857s: 3421968
Number of cells after 2m37.702503629s: 4393134
Number of cells after 3m4.010861013s: 4500609
Number of cells after 3m30.281863982s: 4517258
Number of cells after 3m56.579200247s: 4524601
Number of cells after 4m22.836855989s: 4525219
Number of cells after 4m49.120604591s: 4525268
Number of cells after 5m15.40396479s: 4525479
Number of cells after 5m41.697080592s: 4525520
Meshing took 5m46.138810255s. Starting mesh export.
Mesh quality metrics:
Non Orthogonality
Acceptable range: 0.0 to 88.0
min: 0.0
max: 87.9
average: 13.1
99.99-th percentile: 87.9
Edge Ratio
Acceptable range: 0.0 to 100.0
min: 1.0
max: 964.5
average: 2.2
99.99-th percentile: 964.5
Volume Ratio
Acceptable range: 0.0 to 100.0
min: 1.0
max: 178.7
average: 1.6
99.99-th percentile: 178.7
Aspect Ratio
Acceptable range: 0.0 to 100.0
min: 1.0
max: 1.0
average: 1.0
99.99-th percentile: 1.0
Tetrahedral Aspect Ratio
Acceptable range: 0.0 to 100.0
min: 0.0
max: 0.0
average: 0.0
99.99-th percentile: 0.0
Skewness
Acceptable range: 0.0 to 100.0
min: 0.0
max: 2.9
average: 0.1
99.99-th percentile: 2.9
Min Edge Length : 0
Mesh export took 2m25.174696284s.
What should I do?