Particle pollutant is the prime pollutant of most cities in china, the tiny particle accumulated lots of harmful substance, and it is the carrier of bacteria, revealing the Mechanism of particle transport has an important meaning on controlling the indoor particle pollutant and disease prevention. This article sets up the model of particle penetrating the building envelope based on mathematics modeling, this model takes the pressure difference between indoor and outdoor( air change rate in rooms), crack depth, crack height and particle size as the input parameters and using the CFD to do the simulation analysis , drawing a conclusion.

Yirong Yuan. Research on particle penetrate through single crack based on CFD. Academic Journal of Engineering and Technology Science (2023) Vol. 6, Issue 11: 57-62. https://doi.org/10.25236/AJETS.2023.061109.

[1] Zhang Z, Chen Q(2006). Experimental measurements and numerical simulations of particle transport and distribution in ventilated rooms. Atmospheric Environment, 40(18): 3396-3408.

[2] Marsika T, Johnson R(2008). HVAC air-quality model and its use to test a PM2.5 control strategy. Building and Environment , 43(11): 1850-1857.

[3] Shehabi A, Horvath A, Tschudi W, et al(2008). Particle concentrations in data centers. Atmospheric Environment , 42(24): 5978-5990.

[4] Jenkins P.L., Phillips T.J., Mulberg E.J., et al(1992). Activity patterns of Californians: Use of and Proximity to Indoor Pollutant Sources. Atmospheric Environment,26(12): 2141-2148.

[5] Tian LW(2009). The Research on Modeling of Indoor Particulate Matter of Outdoor Origin and Control Strategies [D]. Changsha: Hunan University.

[6] Zhang F(2007). Numerical Simulation of Suspended Particulate Matter Penetration though Building Envelopes [D].Changsha: Hunan University.