Numerical Simulation of the Cigarette Smoldering Process

Abstract:

Cut tobacco was thermodynamics analyzed as infinitesimal volume, and the equation of energy conservation was built. The process of the burn front moving forward for 1 second(s) could be thermodynamics analyzed and another energy equation was also built. Then, the two equations were combined to get the smoldering velocity, which would be added into the mass, momentum, energy equation which was used to describe the whole burning process. The mass, momentum, energy equation was solved by the CFX software, and the results showed that: 1) After a cigarette ignited, the combustion process was accelerated firstly, then the process became slow and at last be at steady state. 2) Paper diffusivity play a critical role in determining the temperature of the smoldering cone, and the results were in good agreement with the experiment results.

• Periodical: Applied Mechanics and Materials (Volumes 303-306)
• Pages: 2687-2698
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.303-306.2687
• Online since: February 2013
• Authors: Wei Jiang, Bin Li, Zhi Bin Feng, Deng Shan Luo, Chuan Fang Yu
• Keywords: Cigarette Paper Permeability, Model, Smoldering Propagation Velocity

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