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Hubless Propeller in AutoGrid

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Old   November 1, 2016, 18:32
Question Hubless Propeller in AutoGrid
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Syamsi Firdaus
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Hello,

I wanna ask something,
as i know, AutoGrid need 3 important definition : Shroud, Hub and Blade
i've project to analyze hubless propeller. its possible to analyzing in Fine Turbo with meshing in AutoGrid?

When i try to link Geometry, I cant link blade surface to blade. Hope all of you can help me

Thank you

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Old   November 7, 2016, 03:30
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Colinda
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The blade is physically connected to the shroud then? Sure it is possible to analyze in AutoGrid. You just need to define a virtual hub and add a block for the center part e.g. in a 3D effect.
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Old   November 18, 2016, 09:27
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Syamsi Firdaus
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Quote:
Originally Posted by colinda1 View Post
The blade is physically connected to the shroud then? Sure it is possible to analyze in AutoGrid. You just need to define a virtual hub and add a block for the center part e.g. in a 3D effect.
Hi collinda
Thanks for your response.
i still confuse about that virtual hub and block for the center. may you explain more specific to me?
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Old   November 21, 2016, 11:07
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Colinda
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In your CAD or in the CAD import window of AutoGrid5 you may define a virtual hub. What I mean by virtual that you will mesh it as if it is a wall but then you can add a 3D effect in your AutoGrid5 project that inserts a (butterfly)block in the part from 0 radius up to the hub and that is connected with a full non-matching connection for example.
So the virtual hub is not a real wall but a connection to the inner fluid region.
Alternative to a 3D effect in AutoGrid5, the block can be added in IGG.
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