Influence of Optimality Criterion Choice on the Electromagnetic Stirrer Optimization Results

Shape optimization occupies an important place in the development of MHD-stirrer for liquid metal, allowing to reduce economic and time costs. For all importance and relevance, there is still no unequivocal opinion as to which optimality criterion should be chosen: integral electromechanical force, integral melt velocity or time of technological process, for example, equalizing temperature in the melt volume. Present paper is devoted to comparing results of magnetic core optimization for MHD-stirrer with a traveling EM field for listed optimality criteria. As a parameter, by which efficiency of obtained result was evaluated, the time taken to equalize temperature in the melt volume was chosen.