Estimation of Transient Multi Components Heat

Flux on a Conical Body Using Sequential

Function Specification Method



A. Pourshaghaghy and F.  Kowsary*

Mechanical Engineering Dept.

Faculty of Engineering

University of Tehran

Tehran, Iran





Sequential function specification method is discussed in estimation of transient distributive surface heat flux in an axisymmetric conical body. The estimation of heat flux is an important prerequisite for determination of thermally induced stresses in many industrial applications.  In this work, numerically simulated test data are used for the assessment of the effectiveness of the method. The algorithm and the conclusions reached, however, may be extended to more complex geometries as the inverse sequential function specification method is independent of the geometry of the body being considered.  Sensitivity coefficients at sensor locations are calculated and utilized as a basis for determination of the number of the future data to be used in sequential function specification method. Results show that, for appropriate selection of the number of future data, the method is quite capable of accurate as well as stable prediction of the surface distributive heat flux.

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