Heat transfer as well. At the first engineering firm I worked for, we had a very good heat transfer solver but no electrical solver since it was an infrequent

Heat transfer as well. At the first engineering firm I worked for, we had a very good heat transfer solver but no electrical solver since it was an infrequent need in our field. One of old timers was an expert at reframing the electrical problems into heat transfer, solving in the available tools, then converting back. As he said "it's all unit conversions". I never picked it up beyond simple resistance networks, but it was a cool way to abuse the tools. https://lpsa.swarthmore.edu/Systems/Thermal/SysThermalElem.html https://lpsa.swarthmore.edu/Systems/Thermal/SysThermalElem.h...