EXPERIMENTAL DATA AND THE NONLINEAR INVERSE PROBLEM OF HEAT TRANSFER

In the paper development a method for finding nonlinear heat-conducting characteristics of soil is being presented. Two-layer container complexes have been created, side faces which are thermally insulated so that 1D heat equation can be used. order not to solve boundary value problem with contact discontinuity and lose accuracy method’s solution, temperature sensor was placed at junction two media, mixed solved in each area (container). To provide initial data an inverse coefficient problem, sensors used: one open recorded this boundary, second short distance from air temperature. The measurements were carried out on time interval  First, initial-boundary thermal conductivity coefficients conductivity, capacity, transfer, material density studied numerically. by finite difference method. Based measured complex, special functionals constructed , specific capacity transfer found, depend material. experimentally data, corresponding functional minimized using gradient descent All thermophysical clay found relative error 5%. &nbsp