Real textbook relationships: q = ½ρv² (dynamic pressure), Re = ρvL/μ (Reynolds number), M = v/√(γRT) (Mach number), v₁A₁ = v₂A₂ (incompressible continuity), D = qCDA (drag definition).
Illustrative inputs: L = 0.45 m, A = 0.12 m², μ = 1.81 × 10⁻⁵ Pa·s, γ = 1.4, R = 287.05 J/(kg·K). The modelled CD = 0.025 + 0.0007α² is a teaching assumption, not measured aerodynamic data. Area ratio = 3.0 (illustrative).
Independent arithmetic check: ½ × 1.225 × 32² = 627.2 Pa vs engine 627.2 Pa MATCH.
Genuine scientific features: honeycomb/screen conditioning, contraction, a working section, pressure instrumentation, a diffuser, a downstream axial fan and force-balance concepts.
Engineering-inspired reconstruction: vessel panels, service hardware, wiring, fan blade shapes, pressure-tap geometry and supporting infrastructure are original designs. Simplified educational representation: steady uniform one-dimensional airflow and an ideal-gas sound speed; no losses, boundary layers, CFD or validated fan curve. Speculative components: the precise rack, safety-beacon and drive-support arrangements.
Animation: particles and rotating machinery are illustrative, not a validated flow simulation.
Illustrative design, not affiliated with any real institution or manufacturer.