Blow-up in a reactive-diffusive medium with a moving heat source

  • Authors:
  • C. M. Kirk;W. E. Olmstead

  • Affiliations:
  • Department of Mathematics, California Polytechnic State University, San Luis Obispo, CA;Department of Engineering Sciences and Applied Mathematics, Northwestern University, Evanston, IL

  • Venue:
  • Zeitschrift für Angewandte Mathematik und Physik (ZAMP)
  • Year:
  • 2002

Quantified Score

Hi-index 0.01

Visualization

Abstract

A concentrated source of heat is allowed to move in one-dimension through a reactive-diffusive medium. For rather general motion, it is shown that if the speed remains sufficiently high then a blow-up can be avoided; whereas, if the speed remains sufficiently low then a blowup must eventually occur. Other criteria involving the displacement and velocity of the heat source are found to guarantee a blow-up. Special examples of (i) rapid deceleration from one velocity level to a lower level and (ii) a simple periodic motion are examined.