Originally Posted by BizJetJock
It was Navier-Stokes in my days at RAE, but maybe they've "modernised" them.
Modernised certainly, but not replaced. The Navier Stokes-equations are at the core of most modern computational fluid mechanics.
Which, I'm delighted to say is somebody else's problem, so far I've managed to spend most of my time worrying about whole aeroplanes, not the ability of computers to predict fiddly little bits of airflow - important though it is, it fascinates me not at-all.
G