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The detailed mathematical model of heat and mass transfer of steel ingot ofcurvilinear continuous casting machine is proposed. The process of heat andmass transfer is described by nonlinear partial differential equations ofparabolic type. Position of phase boundary is determined by Stefan conditions.The temperature of cooling water in mould channel is described by a specialbalance equation. Boundary conditions of secondary cooling zone include radiantand convective components of heat exchange and account for the complexmechanism of heat-conducting due to airmist cooling using compressed air andwater. Convective heat-transfer coefficient of secondary cooling zone isunknown and considered as distributed parameter. To solve this problem thealgorithm of initial adjustment of parameter and the algorithm of operativeadjustment are developed.

Identification of Convection Heat Transfer Coefficient of Secondary  Cooling Zone of CCM based on Least Squares Method and Stochastic  Approximation Method