Abstract A mathematic model for the determination of the surface heat flux and heat transfer coefficient was built based on one of the inverse heat transfer methods-the nonlinear estimation method. A general inverse heat transfer analysis computer program was developed and used to estimate the heat flux history by the temperature data generated by applying a triangle heat flux on one of the one dimensional mesh boundaries. Validation of the inverse heat transfer program was conducted by comparing the estimated heat flux with the triangle heat flux history. The influences of the thermocouple delay, the shape of the heat flux, calculation parameters, temperature sampling frequency and the distance from the temperature measurement point to the surface on the prediction of the surface heat flux were also studied. Additionally, approaches in reducing such influences were also discussed in this paper.
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