I have a created a set of blade, shroud and hub curves from a turbine nozzle vane model in SolidWorks/Rhino and written out an iges file to import into Bladegen through the Wizard. However, the trailing edges give a very poor representation. I have also exported the vanes as an IGES from BladeGen back into Rhino and compared them with the original vanes, but the leading and trailing edges are different, although the overall shape is acceptable.
Can you suggest a more reliable method to get these vanes in to BladeGen?
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Sometimes during the import of IGES files using the BladeGen Import Wizard there can be problems with the definition of the leading (LE) and trailing (TE) edges. Exporting via IGES is probably not the most reliable method due to the differences in iges file generation and how different CAD programs read them. Probably the best and most reliable import method into BladeGen is via the RTZT file (meanline file) as this is the information that Bladegen uses in its underlying geometry kernel. A good method for export of the blade data is using the data via points either as an RTZT file or as TurboGrid files. This will then retain the point data information from CAD package to CAD package. Additional Output Layers can also be included during the export from Bladegen to increase the blade definition. |
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