２．Setting of the import options
Setting of the import options (2/5)
n Import Options
n Uncheck the Perform Auto Repair on Import （ for the β functionality ） .
n Check the Open Cascade .
n 
Leave the other settings as default.
n STL/Nastran Import Option (Details will be given in the pages that follows).
n Group Mode One Group per surface
n Merge Verticies across solids On
n Merge Vertices Tolerance 0.001
n Feature Angle 43
n Unit mm to mm
n Scale 1
Setting the import options (3/5)
n Explaination of STL/Nastran Import Option
n Group Mode:
n One group per file
n When importing multiple STL files, create the geometry groups for every STL files.
n One group for all files
n When importing multiple STL files, create one geometry group for all the files.
n One group per surface
n Create geometry groups for every sub-part of the STL file.
Setting the import options (4/5)
n Explaination of STL/Nastran Import Option
n Merge vertices across solids
n When importing multiple files, merge the vertices within the tolerance.
n This options is used when One group per file/One group for all files is selected.
n Merge vertices Tolerance.
n Merges the gaps below this value.
8
Setting the import options (5/5)
n Explaination of STL/Nastran Import Option
n Feature Angle
n Set the minimum angle between polygonal facets when displaying feature lines.
n Unit
n Scale the model’s size by unit.
n Scaling with the same unit (e.g., m to m ） does not change the size of the model.
n Scale
n Scale the model’s size with specified ratio.
n No scale if specified to 1.
Import the STL file (HeatSink_cf.stl).
３．Creating the computational domain
Creating the outer boundaries using the primitive functionality.
