Home▸Climate, Ecology & Environment▸High-Moisture Extrusion: 2D Radial Fiber-Alignment Field

High-Moisture Extrusion: 2D Radial Fiber-Alignment Field

Interactive 2D twin-screw extruder model: unlike the 3D version's single global shear/alignment value applied to every parcel, this model solves an advection-reaction-diffusion PDE for alignment and temperature across the channel's radius, so shear (highest at the wall, zero at the centerline) and thermal quenching lag (heat diffuses inward from a directly-controlled wall temperature) both vary genuinely across the cross-section.

Climate, Ecology & Environment2DAdvanced60 FPS📱 Mobile-adapted⇄ 3D version

This 2D companion to the 3D extrusion simulator keeps the same real-world subject — turning isotropic plant protein into meat-like fiber inside a twin-screw extruder — but computes it independently and at finer resolution. Instead of applying one shear rate and one closed-form alignment curve to every parcel regardless of position, this model resolves an advection-reaction-diffusion PDE across an unrolled length × radius grid: shear is zero at the centerline and maximal at the wall (a real drag-flow velocity profile), and the wall's controlled temperature has to diffuse inward to reach the core, exactly as it does in a real barrel or die. Tune screw speed, cook temperature, moisture and die temperature to watch a well-aligned, well-quenched skin form at the wall while the core — reached only by advection and slow radial conduction — can stay mushier, a genuine cross-sectional failure mode the single-value 3D model cannot represent.

⚙ Under the hood

2D companion to the twin-screw extruder simulator: instead of one global shear/alignment value per parcel, this model solves an advection-reaction-diffusion PDE for fiber alignment and temperature across the channel's radius, so shear (zero at the centerline, maximal at the wall) and thermal quenching lag (heat diffuses inward from a directly-controlled wall temperature) both vary genuinely across the cross-section — revealing a well-aligned, well-quenched skin with a less-aligned core that the 3D version's single-value model cannot show.

food techplant-basedextrusionproteinclimate techmaterial sciencePDEreaction-diffusion

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install