NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Specialized CFD Grid Generation Methods for Near-Field Sonic Boom PredictionOngoing interest in analysis and design of low sonic boom supersonic transports re- quires accurate and ecient Computational Fluid Dynamics (CFD) tools. Specialized grid generation techniques are employed to predict near- eld acoustic signatures of these con- gurations. A fundamental examination of grid properties is performed including grid alignment with ow characteristics and element type. The issues a ecting the robustness of cylindrical surface extrusion are illustrated. This study will compare three methods in the extrusion family of grid generation methods that produce grids aligned with the freestream Mach angle. These methods are applied to con gurations from the First AIAA Sonic Boom Prediction Workshop.
Document ID
20140007302
Document Type
Conference Paper
Authors
Park, Michael A. (NASA Langley Research Center Hampton, VA, United States)
Campbell, Richard L. (NASA Langley Research Center Hampton, VA, United States)
Elmiligui, Alaa (NASA Langley Research Center Hampton, VA, United States)
Cliff, Susan E. (NASA Ames Research Center Moffett Field, CA, United States)
Nayani, Sudheer N. (Analytical Services and Materials, Inc. Hampton, VA, United States)
Date Acquired
June 11, 2014
Publication Date
January 13, 2014
Subject Category
Fluid Mechanics and Thermodynamics
Report/Patent Number
AIAA Paper-2014-0115
NF1676L-16567
Meeting Information
AIAA Aerospace Sciences Meeting(National Harbor, MD)
Funding Number(s)
WBS: WBS 475122.02.07.02.01
Distribution Limits
Public
Copyright
Public Use Permitted.

Available Downloads

NameType 20140007302.pdf STI