Reply To: Porta's Derivation of Lempor Theory
I thought that JK’s book was very good as a historic record, and useful as piece of reference material, but if you are looking for a textbook on fluid mechanics, there are better options available.
Regarding nozzles etc., in my mind the jury is still out until we can get some decent test results from a main line sized locomotive such as an S160. There are some people putting these sort of devices on locomotives with slide valves and saturated boilers, which is probably a waste of effort.
On the other hand, some people would say that messing about with steam engines is a waste of effort!