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Bifurcation and hysteresis varieties for the thermal-chainbranching model II: positive modal parameter

  • Ian Stewart (a1) and Alexander Woodcock (a1)

When hydrogen and oxygen react in a closed vessel, the reaction either happens slowly or explosively, depending on the initial temperature θ0 and pressure P. In the (θ0, P)-plane the boundary between these behaviours is represented by a curve. On this curve P is triple-valued over θ0 in certain ranges; that is, for certain initial temperatures there are three explosion limits. This phenomenon, known as the explosion peninsula, is among other things a sign that more than one elementary reaction is involved in the oxidation of hydrogen. Other reactions display similar effects.

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[1] M. Golubitsky and D. Schaeffer . A theory for imperfect bifurcation via singularity theory. Comm. Pure Appl. Math. 32 (1979), 2198.

[2] M. Golubitsky and D. Schaeffer . Imperfect bifurcation in the presence of symmetry. Comm. Math. Phys. 67 (1979), 205232

[4] M. Golubitsky , B. Keyfitz and D. Schaeffer . A singularity theory analysis of a thermal- chainbranching model for the explosion peninsula. Comm. Pure Appl. Math. 34 (1981), 433463.

[5] B. F. Gray . Theory of branching reactions with chain interaction. Trans. Faraday Soc. 66 (1970), 11181126

[6] B. F. Gray and C. H. Yang . On the unification of the thermal and chain theories of explosion limits. J. Chem. Phys. 69 (1965), 2747.

[8] I. N. Stewart . Applications of catastrophe theory to the physical sciences. Physica D (1981), 245305

[9] I. N. Stewart . Catastrophe Theory in physics. Rep. Progr. Phys. 45 (1982), 185221.

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Mathematical Proceedings of the Cambridge Philosophical Society
  • ISSN: 0305-0041
  • EISSN: 1469-8064
  • URL: /core/journals/mathematical-proceedings-of-the-cambridge-philosophical-society
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