INCAP: a finite element program for one-dimensional nonlinear inverse heat conduction analysis. [PWR LOCA conditions]
The calculation of the surface temperature and surface heat flux from a measured temperature history at an interior point of a body is identified in the literature as the inverse heat conduction problem. This report presents apparently the first application of an inverse solution technique that utilizes a finite element heat conduction model and Beck's nonlinear estimation procedure. The technique is applicable to the one-dimensional nonlinear model with temperature-dependent thermophysical properties. A digital computer program INCAP (INverse Heat Conduction Analysis Program) is developed from the formulation and is used in a comparative study with the finite difference inverse code ORINC (ORNL INverse Code). Specifically, two representative thermocouple transients obtained from electrically heated composite rods during a simulated loss-of-coolant accident are analyzed with INCAP and ORINC and the results are compared.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6004544
- Report Number(s):
- NUREG/CR-0832; ORNL/NUREG/CSD/TM-8
- Country of Publication:
- United States
- Language:
- English
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ORINC: a one-dimensional implicit approach to the inverse heat conduction problem. [PWR]
Application of the finite element method to the nonlinear inverse heat conduction problem using Beck's second method
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