A Review of Methods Applied to Study Airborne Biocontaminants inside Aircraft Cabins

Table 3

Studies related to airborne dispersion of contaminants and some methods’ aspects.

Reference	Test place	Simulated contaminant	Tracer	Equipments	Particle simulation
Zhang and Chen [9]; Num	Aircraft cabin	Breathing pollutants	Gas CO2	N/A	CFD Euler k-ε, RNG
Sze To et al. [13]; Exp	Aircraft cabin	Expiratory droplets (coughing)	Polydispersed particles of simulated saliva	Inhouse atomizer; spectrometer	N/A
Nielsen [15]; Exp	Ventilated room	Expiratory pollutants	Gas N2O	Gas source and analyzer	N/A
Bryant et al. [19]; Num and Exp	Ventilated room	General indoor contaminants	Monodispersed particles with 3 μm	TSI atomizer; Laser photometer	CFD Lagrange
Yan et al. [20],; Num and Exp	Aircraft cabin	Expiratory droplets (droplet nuclei)	Gas CO2	CO2 source and monitor. VPTV	CFD Euler; k-ε, std
Wan et al. [41]; Exp	Aircraft cabin	Expiratory droplets (coughing)	Water polydispersed particles with 6.7 μm	Inhouse generator; CNC; spectrometer	N/A
Zhang et al. [42]; Num and Exp	Aircraft cabin	Expiratory contaminants	DEHS monodispersed particles 0.7 μm; SF6;	TSI atomizer and counter; gas sampler	CFD Lagrange; k-ε, RNG
Shimada et al. [43]; Num and Exp	Ventilated room	Fine-particles smoke	polystyrene latex with 0.14 μm	Inhouse atomizer; particle counter	CFD Euler
Gupta et al. [44]; Num	7 Row, twin-aisle, full-occupied aircraft cabin	Expiratory droplets (coughing, breathing, and talking)	Monodispersed particles, with diameters of 8.5 μm, 0.40 μm, and 30 μm	N/A	CFD Lagrange k-ε, RNG
Poussou et al. [49]; Num and Exp	Aircraft cabin, reduced-scale mockup	General pollutants released/spread by a moving body	Uranine (C20H10O5S2Na)	PIV and PLIF	CFD k-ε, RNG
Wan et al. [50]; Num	Aircraft cabin	Expiratory droplets (coughing)	Monodispersed water droplets, with diameters of 2, 6, 12, 20, 28, 45, 87.5, 137.5, and 225 μm	N/A	CFD Lagrange; k-ε, RNG

Num = numerical; Exp = experimental; N/A = Not applicable.