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- W3149948816 abstract "AbstractThe detailed mathematical model of heat and mass transfer of steel ingot of curvi-linear continuous casting machine is proposed. The process of heat and mass transferis described by nonlinear partial di erential equations of parabolic type. Positionof phase boundary is determined by Stefan conditions. The temperature of coolingwater in mould channel is described by a special balance equation. Boundary con-ditions of secondary cooling zone include radiant and convective components of heatexchange and account for the complex mechanism of heat-conducting due to airmistcooling using compressed air and water. Convective heat-transfer coecient of sec-ondary cooling zone is unknown and considered as distributed parameter. To solvethis problem the algorithm of initial adjustment of parameter and the algorithm ofoperative adjustment are developed. 1 Introduction Improved computing signi cantly increased role of mathematical modeling in research ofthermo-physical processes. This, in turn, imposes stricter requirements towards accuracyand eciency of mathematical models.It is well known that successful modeling mostly depends on the right choice of amodel, which is directly a ected by reliability of thermo-physical parameters used. Fre-quently, empirical data alone can not provide sucient information about one-valuednessconditions.Therefore recently the big attention is given to the solution of inverse problems of heatconduction, in which it is necessary to de ne thermophysical properties of an object onavailable (frequently rather limited) information about temperature eld. In particularthus it is possible to identify boundary conditions. There are diculties in choice of someparameters of process for development of mathematical models of technological processes.1" @default.
- W3149948816 created "2021-04-13" @default.
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- W3149948816 date "2008-01-01" @default.
- W3149948816 modified "2023-09-26" @default.
- W3149948816 title "Identification of Convection Heat Transfer Coefficient of Secondary Cooling Zone of CCM based on Least Squares Method and Stochastic Approximation Method" @default.
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- W3149948816 hasPublicationYear "2008" @default.
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