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. 2020 Dec 28;31(1):7–25. doi: 10.1111/ina.12770

Table 3.

The characteristics of the artificially produced jets and the measured parameters

Measurement technique Article Exhalation mode Manikin properties Generated jet Main studied parameters
Opening area Thermal load Body thermal temperature (°C) Continuity or frequency Flow rate or velocity Flow shape Temperature °C
Visualization Liu and Novoselac 21 Coughing Circular tube of 2.4 cm inner diameter 45 W 1 times/s *initial velocity = 6.08 m/s Square wave
  • Propagation distance

  • Spreading rate

Pointwise anemometry

Comparison between steady jet and cough jet in terms of

  • Centerline velocity

  • Velocity profile

Xu et al 35 Breathing Mouth: 120 mm2 (semi ellipsoid) 70 W·m2 15.5 times/min 8.8 L/min 34

Effect of body metabolic rate and ventilation on

  • velocity profile

  • Centerline velocity

Nose: 2 tubes, 12 mm diameter
Xu et al 34 Breathing Mouth: 120 mm2 (semi ellipsoid) 70 W·m2 15.5 times/min 8.8 L/min 34

Comparison between human and manikin breathing in terms of:

  • velocity profile

  • Centerline velocity

Nose: 2 tubes, 12 mm diameter
PIV Feng et al 29 Breathing 12 mm diameter 75 W 32‐36 15 time/min 0.45 L/exhalation time 34
  • Velocity field

  • Flow shape

  • Vorticity

  • Centerline Velocity

  • Turbulence intensity

Berlangaet al. 31 Breathing Mouth:122 mm2 (circular) 128 W 34 16.43 & 13.7 times/min 9.46 & 7.52 L/min 34
  • Velocity field

  • Flow shape

  • Jet spread angle

  • vorticity

  • Centerline Velocity

Jiang et al 30 Breathing Nose: 12 mm diameter 75 W 15 times/min 0.45 L/time Sinusoidal 34
  • Velocity field

  • Spatial distribution of the turbulence intensity

  • Effect of the body thermal plume.