ISSN Online: 2377-424X
ISBN Print: 0-89116-559-2
International Heat Transfer Conference 8
EXPERIMENTAL VALIDATION OF A NEW SPACE MARCHING FINITE DIFFERENCE ALGORITHM FOR THE INVERSE HEAT CONDUCTION PROBLEM
摘要
A space marching finite difference algorithm is developed for solving the one-dimensional inverse heat conduction problem. The method is easy to apply, stable and as accurate as the most efficient existing methods.
An experimental set-up made of a rectangular parallelepiped polymerized around a woof of thermocouples has especially been designed to validate the method. The thermal conductivity of the test specimen is previously determined with the same set-up and the specific heat is estimated during the experiments. The estimated surface heat flux is in very good agreement with the heat flux measured by a foil heat flux gage, this whatever the sensor locations. These results show that the method remains effective in spite of the cumulated effects of the errors due to the data acquisition system, to the location and calibration of the sensors, and to the simultaneous estimation of the specific heat.
An experimental set-up made of a rectangular parallelepiped polymerized around a woof of thermocouples has especially been designed to validate the method. The thermal conductivity of the test specimen is previously determined with the same set-up and the specific heat is estimated during the experiments. The estimated surface heat flux is in very good agreement with the heat flux measured by a foil heat flux gage, this whatever the sensor locations. These results show that the method remains effective in spite of the cumulated effects of the errors due to the data acquisition system, to the location and calibration of the sensors, and to the simultaneous estimation of the specific heat.