Features of mathematical model for ignition process of a metallized condensed substance by a local energy source

20th International Conference for Students and Young Scientists: Modern Techniques and Technologies

工业技术;材料科学

Glushkov, D.^1 ; Dmitrienko, M.^1

Tomsk Polytechnic University, Tomsk, Russia^1

关键词: Condensed substances;    Ignition delay time;    Ignition process;    Integrated characteristics;    Local energy;    Particle heated to high temperatures;    Thermal contact;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/66/1/012010/pdf
DOI  :  10.1088/1757-899X/66/1/012010

来源: IOP

【 摘 要 】

Comparison of analysis results for regularities of a metallized condensed substance ignition by a single small-sized particle heated to high temperatures and a hot massive plate was carried out. Ignition delay time was defined for metallized condensed substance. Influence of local energy source heat content on integrated characteristics of process was established. It was shown that use of heat transfer mathematical model with perfect thermal contact conditions on surface of a condensed substance is impossible in case of its ignition by a local energy source with limited heat content.