Mass Flow Transmitters
hetfield,
thanks a lot.
I've been reading up a little and it appears that due to the widely varying temperatures (I'd reasonably expect somewhere between +40 and -40 degrees C) and densities of jet fuel, mass-flow transmitters are commonly used, probably in RR engines, too. Energy content per mass unit is almost constant, but varies per volume unit, so that makes sense.
That would also mean that fuel foam at full volume flow would still register low (mass) fuel flow, contrary to my earlier comments.
Bernd