Discharge Mass Rate
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Birch Pseudo-Source d_ps
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Wind-to-Jet Angle
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Upwind Stagnation / Reversal
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LFL Hazard Envelope
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Flammable Mass / Toxic Extent
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1. Hazard Threshold Footprint & Cloud Inventory Summary
Separates Downwind extent, Upwind counter-flow penetration (against wind), and Cross-wind lateral deflection / symmetric half-width.
| Hazard Threshold | Category | Target Concentration | Path Length s (m) | Downwind Extent (m) | Upwind Extent (m) | Crosswind Extent (m) | Max Cloud Width (m) | Elevation Z Range (m) | Cloud Volume (m³) | Gas Mass in Cloud (kg) |
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2. Multi-Direction Wind Sensitivity Comparison (0° Co-Wind to 180° Head-On Wind)
Automatic directional sweep holding discharge geometry fixed while rotating wind direction around the compass.
| Relative Wind Angle | Flow Regime | Wind From → Toward | Threshold | Path Length s (m) | Downwind Extent (m) | Upwind Penetration (m) | Crosswind Extent (m) | Stagnation Point (m UW) | Max Width (m) | Cloud Mass (kg) |
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3. Step-by-Step 3D Lagrangian Plume Trajectory & Dilution Profile
Tracks 3D coordinates (X, Y, Z), wind-frame coordinates, velocity vector, plume dimensions, temperature, density, and concentrations.
| Step | Path s (m) | East X (m) | North Y (m) | Height Z (m) | Along-Wind (m) | Cross-Wind (m) | Speed (m/s) | Heading / Pitch | Width 2by × 2bz (m) | Temp (°C) | Density (kg/m³) | Flam Peak (% vol) | Flam Peak (ppm) | Toxic Mean (ppm) |
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