Accession Number : ADA117572

Title :   Numerical Solution of an Ill-Posed Problem Arising in Wind Tunnel Heat Transfer Data Reduction,

Corporate Author : NAVAL SURFACE WEAPONS CENTER SILVER SPRING MD

Personal Author(s) : Bell,John B ; Wardlaw,Andrew B , Jr

PDF Url : ADA117572

Report Date : 04 Dec 1981

Pagination or Media Count : 37

Abstract : This report documents a computer program which solves an improperly posed heat conduction problem arising in the measurement of heat transfer data in wind tunnel experiments. The mathematical model which is treated is one dimensional and assumes constant material properties. The computational approach is based on an adaptation of a method used by Alifanov to treat a similar problem. The Green's function for a well posed heat conduction problem is used to reduce the problem to a Volterra integral equation of the first kind. Tikhonov regularization techniques are then applied to compute stable approximate solutions. Numerical results for several cases typical of a class of wind tunnel experiments are presented.

Descriptors :   *Numerical analysis, *Wind tunnels, *Heat transfer, *Data reduction, *Integral equations, Recognition

Subject Categories : Numerical Mathematics
      Test Facilities, Equipment and Methods
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE