Calculation of 3-dimensional eddy currents at power frequencies

Abstract
The forseeable increase in the speed of digital computers over the next few years is, alone, unlikely to increase significantly the range of 3-dimensional eddy current problems amenable to numerical solution. Thus greater use of suitable approximations and highly efficient numerical methods are required to attack the general 3-dimensional problem. The paper reviews the current techniques and approximations used and, from this, proposes the form of a general program for calculating 3-dimensional eddy currents suitable for present digital computers.

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