Autogrid

Autogrid

Purpose

Generate and, when requested, execute the validated PowerShell command that calls the user's reusable AutoGrid5 wrapper:

& "C:\Users\HP\.codex\skills\autogrid\run_autogrid_mesh.bat" "<geomTurbo>" "<output.igg>" "<template.trb>"

The wrapper is self-contained: it writes the required AutoGrid5 Python macro into a temporary working directory at runtime, so it should not depend on a separate run_autogrid_project.py file being present.

The wrapper is expected to produce an editable AutoGrid project package with matching basename:

<case>.trb
<case>.geomTurbo
<case>.igg
<case>.cgns
<case>.bcs
<case>.config
<case>.geom
<case>.info
<case>.qualityReport
<case>.autogrid.log
<case>.xmt_txt

Required Inputs

Always obtain or infer exactly these three paths before running:

1. geomTurbo: CFturbo-exported .geomTurbo geometry path.
2. output.igg: desired output mesh path. Its parent folder is the case output folder, and its basename becomes the basename for all companion files.
3. template.trb: AutoGrid .trb template path. If the user does not provide a template but gives a compressor stage count, select the matching template from C:\Users\HP\.codex\skills\autogrid\Trb template.

Template Selection

Use this mapping when the user gives a stage count instead of a .trb path:

If the stage count does not match one of these known templates and no explicit .trb is provided, ask for the template path before running. The 0.5, 1, and 4 stage contra-rotating templates are reusable/common templates for those cases.

If the user asks only for the command, do not execute it. If the user asks you to run it, run the PowerShell command and then verify output files and quality report.

Command Pattern

In PowerShell, use & because the batch path contains spaces:

& "C:\Users\HP\.codex\skills\autogrid\run_autogrid_mesh.bat" "D:\path\case.geomTurbo" "D:\path\output\case.igg" "D:\path\template.trb"

Preserve quotes around all three arguments. Prefer .igg as the output extension.

Optional TRB Field Edits

If the user asks to modify template parameters before meshing:

1. Do not edit the original template in place.
2. Copy the template to a clearly named derived .trb path in the output folder or a temporary working location.
3. Patch only requested fields, preserving the NI_BEGIN / NI_END structure.
4. Run the wrapper with the derived .trb as the third argument.
5. Report the derived template path and the changed fields.

Common fields are summarized in trb-fields.md.

Verification

After running, check:

• <case>.trb exists and is nontrivial in size.
• <case>.igg exists.
• <case>.cgns exists when expected.
• <case>.qualityReport contains Mesh Validity : OK and No Negative Cell.
• <case>.autogrid.log has no fatal error and shows Exit IGG Background Session.

Warnings such as Spanwise Angular deviation exceeds 40 degrees should be reported, but they do not automatically mean the batch command failed.