Solidworks Geometry Airflow

SOLIDWORKS Geometry Airflow

Use this skill when SOLIDWORKS is already open and the user wants measurements from the live model instead of estimating from a screenshot.

Assume Windows, PowerShell, Python 3, and pywin32 are available. Keep the workflow read-only unless the user explicitly asks to modify the model.

Workflow

1. Confirm that SLDWORKS is running.
2. Connect to the active SOLIDWORKS application through COM.
3. Read the active document and verify it is a part document.
4. Run the appropriate bundled script for the requested metric.
5. Report the measured values with units and note any assumptions used in airflow calculations.

Bundled Scripts

• scripts/solidworks_active_part_metrics.py Read the active part and output title, body count, face count, volume, and surface area.
• scripts/solidworks_selected_face_metrics.py Read the first selected face in the active part and output its area.
• scripts/solidworks_selected_face_airflow.py Read the first selected face, apply a supplied air velocity, and output area, volumetric flow, and velocity pressure.

Default Commands

Read active part metrics:

python ".\skills\solidworks-geometry-airflow\scripts\solidworks_active_part_metrics.py"

Read selected face area:

python ".\skills\solidworks-geometry-airflow\scripts\solidworks_selected_face_metrics.py"

Compute airflow from the selected face at 12 m/s:

python ".\skills\solidworks-geometry-airflow\scripts\solidworks_selected_face_airflow.py" --velocity 12

Important Rules

• Treat the model as the source of truth. Prefer live SOLIDWORKS measurements over screenshot estimates.
• Require an already open SOLIDWORKS session. Do not launch SOLIDWORKS unless the user explicitly asks.
• Require an active part document for these scripts. If the active document is an assembly or drawing, report that clearly.
• For face-based calculations, use the first selected face and tell the user if nothing is selected.
• Report airflow in m^3/s, L/s, and m^3/h.
• Report velocity pressure as 0.5 * density * velocity^2.
• Do not present velocity pressure as system static pressure. Static pressure cannot be uniquely determined from face area and velocity alone.

Interpretation Rules

• BODY_COUNT is the number of visible solid bodies returned by GetBodies2(0, True).
• FACE_COUNT is the sum of GetFaceCount() across the returned solid bodies.
• Volume comes from the active part mass properties and is reported in both m^3 and mm^3.
• Selected face area comes from IFace2.GetArea() and is reported in both m^2 and mm^2.
• Airflow uses Q = A * v.
• Velocity pressure uses air density 1.2 kg/m^3 by default unless the user provides another density.

What To Report

Include the requested metrics, units, and any assumptions.

For airflow questions, include:

• selected face area
• velocity used
• volumetric flow in m^3/s, L/s, and m^3/h
• velocity pressure in Pa
• a note that static pressure is not determined from velocity and area alone