BOUNDARY VALUE PROBLEMS FOR WEDGES AND CONES UNDER HEAT CONDUCTION.

Abstract

Mellin integral transforms and the Wiener-Hopf technique are used to obtain the temperature distribution in a semi-infinite wedge in which the temperature is specified on the boundary near the vertex and the remaining portion of the boundary is assumed to be insulated. Results are obtained in terms of infinite integrals. Several boundary value problems are considered for the semi-infinite cone. First, the temperature distribution is obtained for the problem where a constant temperature is specified for the portion of the surface of the cone near the vertex and the remaining surface is at zero temperature. Next, the problem is considered where a temperature, dependent only upon the radial distance r, is specified on the boundary. This latter problem was for the half space or cone of angle pi/2 and was solved using the Legendre transform of odd order. Finally, the mixed boundary value problem for the cone, analogous to that of the wedge above, is considered with the method of solution including the Mellin integral transform and the Wiener-Hopf technique. The results for the cone of general angle, 0 < alpha < pi, is in the form of an inversion integral. The temperature distribution is obtained as a residue series for the special case of alpha = pi/2. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1968
Accession Number
AD0669835

Entities

People

  • Charles A. Davis

Organizations

  • North Carolina State University

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Value Problems
  • Convolution Integrals
  • Integral Transforms
  • Integrals
  • Inversion
  • Mathematical Analysis
  • Mathematics

Fields of Study

  • Mathematics

Readers

  • Calculus or Mathematical Analysis
  • Fluid Dynamics.

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