Heat Conduction of Walls with a Monotone Temperature Change. Asymptotics and Quasi-Stationarity

  • O. V. Korshunov

Systematizing the partial solutions of the nonstationarity heat conduction problem of a flat wall in comparison with the general asymptotic solution of this problem, we have found the transverse temperature distributions with any monotone change in the ambient conditions and elucidated the heat conduction properties of the wall under these conditions. The asymptotic solution is given by semiconvergent series and definite integrals and has been investigated for power time dependences with an exponent of 0–2, which has enabled us to justify the concept of quasi-stationarity of the thermal parameters of the wall and obtain asymptotic errors and corrections defining the deviations of these parameters from their stationary values. The features of the average heat flows most resistant to thermal disturbances as to both time and amplitude have been considered.


heat conduction of a flat wall variable boundary conditions asymptotic dependences quasi-stationarity heat flow density 


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© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Joint Institute of High TemperaturesRussian Academy of SciencesMoscowRussia

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