Status and Prospects of Computational Fluid Dynamics for Unsteady Transonic Viscous Flows

Download or read book Status and Prospects of Computational Fluid Dynamics for Unsteady Transonic Viscous Flows written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-06 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of computational aerodynamics to aeronautical research, design, and analysis have increased rapidly over the past decade, and these applications offer significant benefits to aeroelasticians. The past developments are traced by means of a number of specific examples, and the trends are projected over the next several years. The crucial factors that limit the present capabilities for unsteady analyses are identified; they include computer speed and memory, algorithm and solution methods, grid generation, turbulence modeling, vortex modeling, data processing, and coupling of the aerodynamic and structural dynamic analyses. The prospects for overcoming these limitations are presented, and many improvements appear to be readily attainable. If so, a complete and reliable numerical simulation of the unsteady, transonic viscous flow around a realistic fighter aircraft configuration could become possible within the next decade. The possibilities of using artificial intelligence concepts to hasten the achievement of this goal are also discussed. Mccroskey, W. J. and Kutler, P. and Bridgeman, J. O. Ames Research Center NASA-TM-86018, A-9877, USAAVSCOM-TM-84-A-8, NAS 1.15:86018 RTOP 505-31-01-01-00-21