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首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical simulation of virus diffusion in facemask during breathing cycles
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Numerical simulation of virus diffusion in facemask during breathing cycles

机译：呼吸循环中面罩中病毒扩散的数值模拟

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摘要

The recent SARS outbreak has spawned a major controversy concerning the protective performance of facemasks. The objective of this paper is to establish a mathematical model for describing the mechanism of viruses diffusion in a facemask during breathing cycles. In this model the mechanisms of the water vapor molecular diffusion, evaporation/condensation, sorption/desorption of moisture by fibers, Brownian diffusion of the virus, filtration of virus, capillary penetration of the viruses with the liquid water and latent heat generation due to phase change are considered. Meanwhile, the theoretical predictions are compared with experimental data, and good agreement is observed between the two, indicating that the model is satisfactory. Also, the effects of structural and materials properties on virus transfer are investigated.
机译：最近发生的SARS爆发引起了有关口罩防护性能的重大争议。本文的目的是建立一个描述呼吸循环中面罩中病毒扩散机制的数学模型。在该模型中，水蒸气分子扩散，蒸发/冷凝，水分对纤维的吸附/解吸，病毒的布朗扩散，病毒过滤，病毒与液态水的毛细管渗透以及相产生的潜热产生的机理变化被考虑。同时，将理论预测值与实验数据进行了比较，两者之间吻合良好，表明该模型是令人满意的。此外，还研究了结构和材料特性对病毒转移的影响。

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