NODES, MODES AND FLOW CODES

Understanding turbulent flows is a “grand challenge” comparable to other prominent scientific problems such as the large‐scale structure of the universe and the nature of subatomic particles. In contrast to many of the other grand challenges, progress on the basic theory of turbulence translates nearly immediately into a wide range of engineering applications and technological advances that affect many aspects of everyday life. Massively parallel supercomputers seem the best hope for achieving progress on ‘grand challenge’ problems such as understanding high‐Reynolds‐number turbulent flows. © 1993, American Institute of Physics. All rights reserved.