$$$$ THERMIC NOTICE CHAT 11/09/12 21:18:18 7124 DATE 11/09/12 Procedure THERMIC Voir aussi : ----------------- THERMIC (MOT1) TAB1 ; MOT1=NONLINEAIRE: TAB1.'SOUSTYPE' .'MAILLAGE' .'COQUE' .'EPAI' .'CONDUCTIVITE' .'BLOCAGE' .'CRITERE' .'EVOCOND' .'ITERMAX' .'IMPOSE' .'NITER' .'FLUX' .'NIVEAU' Description : ___________ The THERMIC procedure enables the user to deal with the following problem : - nonlinear permanent conditions (isotropic materials only) ; Contents : _________ TAB1 : object (TABLE type, 'THERMIQUE' subtype) containing : - the operands on input; - the generated thermal fields on output; MOT1 : one key word (MOT type) characterizing the type of calculation in progress -------------------------------------- | 1 - Nonlinear permanent conditions | -------------------------------------- MOT1 = NONLINEAIRE On input TAB1 contains the following operands : TAB1 'SOUSTYPE' 'THERMIQUE' (MOT type) TAB1 'COQUE' type of shell element (MOT type) TAB1 'EPAI' shell thickness TAB1 'PEAU' layer on which the exchange is carried out TAB1 'BLOCAGE' restraint matrix (RIGIDITE type) TAB1 'IMPOSE' imposed values (CHPOINT type) TAB1 'FLUX' equivalent flows (CHPOINT type) TAB1 'INSTANT(0)' initial temperature field (CHPOINT type) otherwise supply the following three data TAB1 'CONDUC(0)' table of the conductivity initial values indexed by the models of the subspaces TAB1 'CONVEC(0)' table of the convection initial values indexed by the model objects TAB1 'TEMPEX(0)' table of external initial temperatures indexed by the model objects TAB1 'CONDUCTIVITE' conductivity matrix, otherwise provide the following two data TAB1 'TABCOND' table of the conductivities indexed by the model objects of the different subspaces, the conductivity of each space can be represented by a number (FLOTTANT type) or by an object of evolution describing the variation of the conductivity, temperature function : K(T) TAB1 'CONVECTION' table of tables for a convection condition indexed by the following key words : 'TABCONV1' table of the exchange coefficients indexed by the model objects of the different convection surfaces, the exchange coefficient of each surface can be represented by a number (FLOTTANT type) or by an evolution object describing the variation of the exchange coefficient, temperature function : H(T) 'TABTE1' table of the external temperatures indexed by the model objects of the different convection surfaces, the external temperature of each surface can be represented by a number (FLOTTANT type), by a field by point (CHPOINT type) or by an evolution object describing the variation of the external temperature, temperature function of the convection surface : TE(T) TAB1 'CRITERE' convergence criterion (10E-5 by default) (FLOTTANT type) TAB1 'NITER' conductivity updating every NITER iterations (NITER = 1 by default) (ENTIER type) TAB1 'NIVEAU' levels of messages (NIVEAU = 0 by default ) (ENTIER type) TAB1 'ITERMAX' maximum number of iterations (ENTIER type) (ITERMAX = 10 by default ) TAB1 contains on output: TAB1 'TEMPERATURE' generated temperature field (CHPOINT type)
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