Sensitivity Analysis and Uncertainty Propagation in a General-Purpose Thermal Analysis Code [electronic resource]
Methods are discussed for computing the sensitivity of field variables to changes in material properties and initial/boundary condition parameters for heat transfer problems. The method we focus on is termed the ''Sensitivity Equation Method'' (SEM). It involves deriving field eq...
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Online Access |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1999.
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| Subjects: |
| Summary: | Methods are discussed for computing the sensitivity of field variables to changes in material properties and initial/boundary condition parameters for heat transfer problems. The method we focus on is termed the ''Sensitivity Equation Method'' (SEM). It involves deriving field equations for sensitivity coefficients by differentiating the original field equations with respect to the parameters of interest and numerically solving the resulting sensitivity field equations. Uncertainty in the model parameters are then propagated through the computational model using results derived from first-order perturbation theory; this technique is identical to the methodology typically used to propagate experimental uncertainty. Numerical results are presented for the design of an experiment to estimate the thermal conductivity of stainless steel using transient temperature measurements made on prototypical hardware of a companion contact conductance experiment. Comments are made relative to extending the SEM to conjugate heat transfer problems. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 08/04/1999. "SAND99-2058C" 3rd ASME/JSME Joint Fluids Engineering Conference, San Francisco, CA (US), 07/18/1999--07/22/1999. Dowding, Kevin J.; Blackwell, Bennie F. |
| Physical Description: | 27 pages. |