Making a pressure model legible
Turning a pressure-bridged heat-transfer model into an exploratory engineering instrument without overstating its authority.
Software / Tools · PRJ-2419
Pirani Physics Simulator
The tool makes pressure regimes, gas correction factors, geometry, and accommodation effects visible without pretending to be a traceable calibration system.
SYSTEM PLATE / PRJ-2419STATUS / Research tool
2D/3Dparameter views
CSVsweep export
N₂reference frame
Problem
Problem and constraints
Pirani gauge behavior spans molecular and viscous regimes and varies by gas, geometry, temperature, and calibration assumptions. Static equations alone hide the relationships engineers need to build intuition.
Engineering approachArchitecture and implementation
Parametric 2D and 3D views connect a pressure-bridged heat-transfer model to gas-property data, editable mixtures, gauge geometry, correction curves, and exportable sweeps.
Model
Molecular and continuum contributions are bridged across a wide pressure range.
Explore
Gas mixtures, geometry, temperature, and accommodation are editable in real time.
Boundary
The UI states the model limits clearly and preserves source/provenance context.
Supporting notes
Technical decisions in more detail.
Related writeups document implementation patterns, tradeoffs, and recovery considerations from this work.
Repository
Code and implementation record.
Public repository metadata and source are included where the project is available for review.
Related work
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