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SR27 Transferência de Calor e Massa |
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Title:
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INVERSE ANALYSIS IN MOIST CAPILLARY POROUS MEDIA
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Summary :
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ABSTRACT. THIS WORK DEALS WITH THE SOLUTION OF INVERSE PROBLEMS OF PARAMETER ESTIMATION IN DRYING IN CAPILLARY POROUS MEDIA. THE PHYSICAL PROBLEM CONSIDERED HERE IS DESCRIBED BY THE LINEAR ONE-DIMENSIONAL LUIKOV S EQUATIONS. THE ASSOCIATED DIRECT PROBLEM IS SOLVED ANALYTICALLY BY THE CLASSICAL INTEGRAL TRANSFORM TECHNIQUE. AN ANALYSIS OF THE SENSITIVITY COEFFICIENTS AND THE USE OF THE D-OPTIMUM CRITERION PERMIT THE DESIGN OF THE EXPERIMENT WITH RESPECT TO THE FINAL EXPERIMENTAL TIME, NUMBER AND LOCATIONS OF SENSORS AND THE NUMBER OF PARAMETERS THAT CAN BE ESTIMATED. THE PRESENT PARAMETER ESTIMATION PROBLEM IS SOLVED WITH LEVENBERG-MARQUARDT S METHOD OF MINIMIZATION OF THE ORDINARY LEAST-SQUARES NORM, BY USING SIMULATED EXPERIMENTAL DATA WITH RANDOM ERRORS.
KEYWORDS: LUIKOV S EQUATIONS, HEAT AND MASS TRANSFER, DRYING, INVERSE PROBLEM, LEVENBERG - MARQUARDT S METHOD.
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Author :
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Cotta, Renato Machado
Dantas, Lucilia Batista
Orlande, Helcio Rangel Barreto
Souza, Roberto 0
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Paper View :
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