Reduced-order model · public version 0.2.0

ideal-momentum-jet-explorer

A browser application for examining how nozzle geometry and prescribed area growth affect the normalized state of an ideal momentum jet.

Question

What follows from a prescribed expanding jet area?

The model asks how geometry, density ratio, and directional area growth shape bulk velocity, composite density, dynamic pressure, and entrainment within a conservative locally homogeneous closure.

Method

Equations translated into an inspectable static application

React and TypeScript evaluate the normalized closure client-side. Plotly and three-dimensional geometry expose parameter effects, while saved URLs and exports keep a model state reproducible.

Main outputs

  • Normalized velocity, composite density, dynamic pressure, entrainment, and area-growth curves
  • Interactive rectangular, elliptical, and circular control-volume geometry
  • Shareable model-state URLs and browser-side CSV, configuration, figure, and report exports
  • Clearly separated saved model cases and local comparison-data overlays

Relationships

The application is the explanatory software record for the reduced model. Its overlay interface can receive clearly labeled external curves from CFD, SPH, literature, or measurements, while keeping those sources separate from curves generated by the app.

Read the SPH visualization case

Measured limits

Exploratory model limitations

  • Area growth and spreading angles are prescribed rather than predicted from breakup physics.
  • Bundled overlays are synthetic workflow examples, not measured validation data.
  • The applicability checks are heuristic warnings, not a validated regime map or certification.
  • The application is exploratory reduced-order software, not a substitute for experiments, CFD, or engineering review.