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Dynamic Mesh Errors in Flapping wing analysis

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Old   December 18, 2014, 08:20
Exclamation Dynamic Mesh Errors in Flapping wing analysis
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Navaneetha Kannan
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Hi everyone

I m trying to analyze 3D flapping wing. I downloaded UDF from our forum. When i give preview mesh motion it showing " Updating mesh to time 2.90000e-03 (step = 00029)... Wrong " like this it showing for each time step The wing is not moving. Please can you anybody help me for this problem.

The following steps i followed:

Assigned stationary wall boundary condition for wing in boundary conditions. ( My doubt is whether i have to give any moving wall?) . Others are inlet velocity and pressure outlet.

My dynamic mesh settings.

smoothing- spring laplace boundary layer with spring factor 0.3.
Remeshing parameters i given value from "use default"

For dynamic zone I defined Wing as rigid body and keep CG location and orientation default.

Here attached screen shot of settings and c file. Please anyone help me on this problem.
Attached Images
File Type: png e4.PNG (18.0 KB, 24 views)
File Type: png e3.PNG (15.1 KB, 20 views)
File Type: png e2.PNG (18.3 KB, 20 views)
File Type: png e1.PNG (9.8 KB, 17 views)
Attached Files
File Type: c flapping.c (1.0 KB, 28 views)

Last edited by navaneeaero; December 18, 2014 at 08:54. Reason: Forgot attachment
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dynamic mesh zones, dynamic meshing, flapping wing

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