Chaos dynamic characteristics during mine fires①
(1. State Key Laboratory ofFire Science,
University of Science and Technology of China, Hefei230026, P.R.China;
2. Department of Safety Engineering, School of Civil Engineering,
Mail Box265 Northeastern University, Shenyang110006, P.R.China)
University of Science and Technology of China, Hefei230026, P.R.China;
2. Department of Safety Engineering, School of Civil Engineering,
Mail Box265 Northeastern University, Shenyang110006, P.R.China)
Abstract: Mine fires break out and continue in confined scopes, studying mine fire dynamics characteristics is very useful to prevent and control fire. The judgement index of fire chaos characteristics was introduced, chaos analysis of mine fire process was described, and the reconstruction of phase space was also presented. An example of mine fire was calculated. The computations show that it is feasible to analyze mine fire dynamic characteristics with chaos theory, and indicate that fire process is a catastrophe, that is to say, the fire system changes from one state to another during mine fire.
Key words: mine fire; dynamic characteristics; state change