حل مسايل هدايت حرارتي معكوس با استفاده از روش تقابل دوگانه اجزا مرزي

SOLUTION OF INVERSE HEAT CONDUCTION PROBLEMS USING DUAL RECIPROCITY BOUNDARY ELEMENT METHOD

In the peresent work, the dual reciprocity boundary element method along with sequential function specification method is used for solution of inverse heat conduction problems involving time and space varying heat flux estimation. A new version of the sequential specification method based on using polynomial fit is presented, which shows reduction in sensitivity of the solution to thermocouple locations. The results demonstrate that the method is accurate enough in cases which the amplitude of the errors is up to 2% of the maximum measured temperature. This study illustrate that, the optimum number of future time steps depends on error amplitude.