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Measurement and Account Method for the Available Standing Time of a Smoke Screen Applying the Diffusion Equation
Author(s) -
ChenGuang Zhu,
GongPei Pan,
XiaoYun Wu,
Hua Guan
Publication year - 2006
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.200600020
Subject(s) - diffusion equation , parabola , diffusion , process (computing) , computer science , smoke , mathematics , mathematical analysis , engineering , geometry , physics , thermodynamics , meteorology , metric (unit) , operations management , operating system
The available shielding area of a smoke screen is an important parameter to evaluate its protection capability. It varies with time according to a parabola equation, which could be obtained by the diffusion equation and a few measured data. The available standing time which could satisfy the request of rating area can be calculated. The process of deriving the equation, the experimental procedure and the method of data collecting and processing is presented in detail in this paper. The calculated result is compared with engineering experience to verify the method.