IDENTIFICATION OF TRANSIENT INTERNAL HEAT SOURCE USING MODIFIED LEVENBERG−MARQUARDT ALGORITHM
In this communication time dependent temperature of an internal
heat source has been estimated by solving inverse heat transfer problems. The geometry has been described in a bipolar
coordinate system instead of a rectangular on for convenience.
Then the inverse problem has been converted into a minimisation problem and solved using modified Levenberg−Marquardt algorithm. The algorithm has been verified using simulated
experiments. The forward model has been solved numerically
and used for the inverse problem as well as for generating
experimental measurements. It has been shown that the algorithm
is sensitive to nature of change in the unknown parameter
and the damping factor has a major role to control the deviation in the estimation as well as the time for convergence. Type in your abstract text here.