90° Sharp Elbow CFD
Inlet: 4.72 m/sSmooth Sweeping Curve CFD
Inlet: 4.72 m/s
Air Velocity
4.72 m/s
Mean Inlet Speed
Primary Pressure Drop
16.10 Pa
0.065 in. w.g.
Minor Loss (K-Factor)
1.20
Sharp 90° Turn Penalty
Curved Loss (K-Factor)
0.25
Smooth Bend Baseline
Turbulence Reduction
79.2%
Curved vs Sharp Elbow
Duct Geometry Aerodynamic Performance Comparison
| Geometry Configuration | Loss Coeff (K) | Pressure Drop @ 500 CFM | Recirculation Zone | Efficiency Rating |
|---|---|---|---|---|
| 90° Sharp Mitered Elbow | 1.20 | 16.10 Pa | Severe Separation Outer Wall | Poor (High Drag) |
| 45° Angled Bend | 0.42 | 5.63 Pa | Moderate Mild Vortex | Moderate |
| Smooth Sweeping Curve (R/D=1.5) | 0.25 | 3.35 Pa | Minimal / Fully Attached Flow | Optimal (Low Noise & Drag) |
Canonical Proof Status:
COMPUTED_STABLE
air_velocity_m_s:
4.72
k_factor_sharp:
1.2
k_factor_curved:
0.25
pressure_drop_sharp_pa:
16.10
pressure_drop_curved_pa:
3.35
turbulence_reduction_pct:
79.2