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downloads/asterion-fcta-v1.0-public-release/asterion-fcta-v1.0/docs/v0_6/analysis_plan.md

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+# Version 0.6 Thermal and CFD Analysis Plan
+
+## Workbench systems
+
+1. Steady-State Thermal — radiator system.
+2. Transient Thermal — radiator deployment/heat step.
+3. Steady-State Thermal — electronics cold plate.
+4. Steady-State Thermal — habitat wall coupon.
+5. Steady-State Thermal linked to Static Structural — thruster bracket.
+6. Fluent — cabin nominal and degraded ventilation.
+7. Fluent transient — cabin fan-loss case.
+8. Fluent — Skimmer Mach 0.3.
+9. Fluent — Skimmer Mach 0.8.
+10. Fluent — Skimmer Mach 2.0.
+
+## Execution order
+
+- Validate geometry scale and named selections.
+- Execute a coarse model and close mass/energy balances.
+- Run the medium model and compare against the screening ranges.
+- Run the fine model only after boundary conditions and monitors are stable.
+- Populate the result templates and retain solver logs, residual histories and mesh statistics.
+- Record discrepancies instead of tuning the model silently to match the screening calculation.
+
+## Minimum evidence per case
+
+- geometry screenshot;
+- mesh and quality statistics;
+- boundary-condition table;
+- residual or convergence history;
+- conservation error;
+- principal contour and engineering interpretation;
+- medium-to-fine mesh comparison;
+- comparison with the supplied reduced-order calculation.

downloads/asterion-fcta-v1.0-public-release/asterion-fcta-v1.0/docs/v0_6/model_assumptions.md

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+# Version 0.6 Model Assumptions
+
+## General
+
+- All calculations are preliminary portfolio-level engineering studies.
+- SI units are used in analysis tables; neutral STL geometry is authored in millimetres.
+- Material properties are constant screening values unless the ANSYS user replaces them with temperature-dependent data.
+- Solver results must be independently reviewed and recorded in the supplied templates.
+
+## Thermal
+
+- Radiator effective emitting area assumes both panel faces have an unobstructed view to space.
+- The solar load is a low-incidence operational case, not worst-case Sun pointing.
+- Spacecraft internal heat is distributed evenly for the first model.
+- MLI is initially represented by an equivalent conductivity and must later be correlated.
+- Contact resistance and coolant manifolds are simplified until detailed CAD is available.
+
+## Cabin CFD
+
+- The first zonal calculation assumes perfect mixing; Fluent is required to resolve local pockets.
+- CO₂ generation is set to 20 L/h per crew member for screening.
+- Two supply diffusers share the nominal volumetric flow.
+- Cabin walls are controlled near 295 K in the first CFD case.
+- The rotating-ring case uses 4.3 rpm and a 12 m occupied radius.
+
+## Skimmer CFD
+
+- The lifting-body surface is a concept loft, not a certified aerodynamic shape.
+- Air is treated as calorically perfect for Mach 0.3, 0.8 and 2.0 cases.
+- Mach 2 is a simplified supersonic study, not high-enthalpy re-entry.
+- Surface roughness, transition, real-gas chemistry and ablation are excluded.
+- Forces are normalised to 24 m² reference area and 8 m reference length.

downloads/asterion-fcta-v1.0-public-release/asterion-fcta-v1.0/docs/v0_6/release_manifest.md

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+# Version 0.6 Release Manifest
+
+- Version: 0.6.0
+- Generated files before checksum list: 265
+- Author: SAMUELSON G
+- Scope: thermal and CFD workflow, neutral analysis geometry and reduced-order checks
+
+The machine-readable manifest is `calculations/v0_6/release_manifest.json`.

downloads/asterion-fcta-v1.0-public-release/asterion-fcta-v1.0/docs/v0_6/result_interpretation_guide.md

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+# Version 0.6 Result Interpretation Guide
+
+## Thermal results
+
+A visually smooth temperature contour is not sufficient. Check total applied heat against radiation, convection and conducted heat. Report heat-balance error and inspect local gradients at manifolds, contacts and attachment points.
+
+## Cabin CFD results
+
+Use mass-weighted and volume-weighted monitors. Report maximum and occupied-zone CO₂, not only outlet concentration. Inspect velocity in crew breathing zones and stagnant regions behind equipment. Verify species and total mass conservation.
+
+## External aerodynamics
+
+Use force monitors until CL and CD remain stable. Check domain-size sensitivity and y-plus targets. At Mach 0.8, inspect shock position and density gradients. At Mach 2, inspect bow-shock capture and ensure the far field is sufficiently remote.
+
+## Correlation
+
+The reduced-order values are expected ranges, not targets to force. Differences may come from actual geometry, turbulence modelling, wall treatment, compressibility and three-dimensional flow. Explain the cause and retain both values.

downloads/asterion-fcta-v1.0-public-release/asterion-fcta-v1.0/docs/v0_6/version_0_6_release_notes.md

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+# ASTERION FCTA-1 Version 0.6 Release Notes
+
+Version 0.6 adds the thermal-control and fluid-dynamics execution package.
+
+## Added
+
+- Six-panel radiator heat-rejection screening and degradation case.
+- Electronics cold-plate, habitat-wall and thruster-bracket thermal checks.
+- Cabin CO₂ transient and ventilation flow screening.
+- Skimmer Mach 0.3, 0.8 and 2.0 aerodynamic coefficient and force estimates.
+- ANSYS Mechanical and Fluent case matrices, boundary conditions, mesh plans and result templates.
+- Neutral thermal and CFD preparation geometry.
+- Four engineering plots and reproducible Python scripts.
+
+## Principal findings
+
+- Nominal radiator equilibrium: **361.38 K**.
+- Five-panel degraded radiator equilibrium: **377.91 K**.
+- Nominal cabin well-mixed CO₂: **587 ppm**.
+- Degraded cabin well-mixed CO₂: **920 ppm**.
+- Fan loss reaches 1000 ppm about **27.9 minutes** after loss from nominal steady state.
+- The Mach 0.8 Skimmer case is expected to be the most drag- and mesh-sensitive of the three initial external-flow cases.
+
+## Limitations
+
+No solved ANSYS Mechanical or Fluent database is represented as completed. All numerical outputs in `calculations/v0_6` are independent reduced-order screening results.