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Autogrid Leading Edge/Trailing Edge Wizard intersection problem

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Old   November 11, 2022, 06:39
Default Autogrid Leading Edge/Trailing Edge Wizard intersection problem
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Fabian Sikora
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Hello together,


I'm trying to create a mesh for a bypass-configuration (Fan-Blade with high staggered angle) using Autogrid5 12.2. and am currently struggeling with the LE/TE Wizard.



I've linked the geometry via CAD-Import (Suction-Sided-Surface and Pressure-sided-Surface) and now trying to define the LE and TE with the Wizard. Unfortunately there's an intersection problem ("sorry, intersection problem") I haven't worked out yet.

You can see the different options I have tried so far in the images attached.



Maybe some of you have an idea, what I'm missing out?[




P.S: It's my first time using Autogrid.


Thanks

Best regards


ATTACH]92295[/ATTACH]

Very_High_Leading_Edge.jpg

Very_High_Leading_Edge_Second.jpg
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File Type: jpg Normal_Blade1.jpg (134.4 KB, 7 views)
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Old   November 14, 2022, 02:32
Default Autogrid Leading Edge/Trailing Edge Wizard intersection problem
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Colinda
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It is really important that the leading and trailing edge curves intersect the hub, shroud and walls of the bypass channel. It is not sufficient if they are just touching.

In addition I would strongly recommend you to update to the latest release as 12.2 is very old and many fixes and improvements have been made ever since.
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Old   November 14, 2022, 04:28
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Quote:
Originally Posted by colinda1 View Post
It is really important that the leading and trailing edge curves intersect the hub, shroud and walls of the bypass channel. It is not sufficient if they are just touching.

In addition I would strongly recommend you to update to the latest release as 12.2 is very old and many fixes and improvements have been made ever since.

Thanks a lot for your reply!

I didn't link the LE/TE curves from the CAD model because the system tells me that the TE/LE wzard is only working for "blunt edges only" if I do. There are only two surfaces linked from the CAD model, the pressure side and suction side. Those surfaces seem to intersect with the walls (as seen in the uploaded pictures)

I wanted to use the TE/LE wizard to create/define "new" curves, but I'm not sure if that's the correct use of that "tool".


Sadly my university only runs that very old version of Autogrid.
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