Time domain modeling of hybrid electromagnetic and thermal processes
Date
2001
Authors
Liu, Wei
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Abstract
The purpose of hybrid numerical analysis is to combine the advantages of different methods, and at the same time, avoid their disadvantages. In this thesis, two hybrid combinations of numerical methods that yield better numerical performance than any of the methods alone have been developed. The thesis comprises two distinct parts.
Part one describes the hybrid combination of the MRTD (wavelet based multiresolution time domain method) and the TLM method. A small section of part one is devoted to the technique of ATLM, which is useful in eliminating spurious solutions by eliminating computational redundancy.
Part two describes a new approach for modeling the thermal behavior of waveguide components under high-power operating conditions. Three mechanisms of heat transfer have been investigated, namely conduction, convection and radiation. This hybrid electromagnetic/thermal algorithm is very useful for microwave engineers in shortening the time for designing high-power waveguide components