Concluding Remarks by other Participants

Tullio Rozzi, University of Ancona, Italy: TLM is a useful tool, but researchers should always be aware of alternative solution methods that could solve parts of a problem or could be combined with TLM in a hybrid approach. Open boundaries, for example, can better be described by an integral formulation, or fields in the vicinity of a singularity can be described by an analytical solution rather than by a highly refined mesh. The introduction of source regions in the mesh also requires further study.

Vladica Trenkic, University of Nottingham, U.K.: The principal advantage of TLM lies in the ease with which it can be implemented. A large number of problems can be tackled by applying simple network and transmission line concepts, and the solution of the models is always stable. Error margins due to dispersion can now be defined very well for the various TLM schemes so that accuracy can be estimated with confidence. The efficient modeling of high performance absorbing boundaries is an important issue in many applications.

Chabannasappa Eswarappa, University of Victoria, Canada: While theoretical efforts to improve TLM are desirable, it is now important to apply TLM to practical problems and to document the consistently high accuracy and stability of TLM solutions. Only results and comparison with experiments will convince the engineering community that TLM is a superior tool for the practitioner.

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