Project velocity in body-fitted coordinate system

Issue/feature addressed

Need natural transition prediction.

Proposed solution

Compute the body-fitted velocity component in order to get the TS/CF wave amplitude to generate n-factor for natural transition prediction.

Implementation

• 1 - A FieldConvert module bodyFittedVelocity to generate the body-fitted coordinate system and projected velocity component. The coordinate system is output.*
• 2 - A filter BodyFittedVelocity is added to read the output body-fitted coordinate system and record point-wise maximum/minimum/original velocity component in the new coordinate system.*
• 3 - By subtracting the maximum velocity field (perturbation-free) from the maximum velocity field (perturbed), a clean amplitude field is obtained. *
• 4 - This amplitude field can be sampled to generate the amplification curve (n-factor).*

Tests

EmbededCylinder2D.tst, EmbededCylinder2D_mesh.xml, EmbededCylinder2D_session.xml, EmbededCylinder2D_bnd_inflow.bc, EmbededCylinder2D_bnd_outflow.bc, EmbededCylinder2D_restart_P2.fld, EmbededCylinder2D_bfc.fld

Suggested reviewers

@ccantwel

Notes

Please add any other information that could be useful for reviewers.

Checklist

• Functions and classes, or changes to them, are documented.
• User guide/documentation is updated.
• Changelog is updated.
• Suitable tests added for new functionality.
• Contributed code is correctly formatted. (See the contributing guidelines).
• License added to any new files.
• No extraneous files have been added (e.g. compiler output or test data files).

Example and results