A fractal model for pressure drop through a cigarette filter
Zhanping Yang, Zhang Li, Dou Feng, Jie Li, Wenxuan Wan, Tao Yu, Lingyi Xu, Xin Yao, Jianhua Cao, Feng Xiaomin · Thermal Science · 2020
A fractal model for pressure drop through a cigarette filter is suggested, the fractal dimensions of both a single fiber and the filter?s cross-sections are calculated, which are two main factors affecting the pressure drop. The two-scale transform is made to convert the fractal derivative model on a smaller scale to an approximate continuous model on a larger scale, so that the model can be easily solved. An optimal filter structure is suggested for minimal pressure drop.