Adaptive Navier-Stokes Calculations for Vortical Flow
Author: Earll M. Murman
Publisher:
Published: 1993
Total Pages: 14
ISBN-13:
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Author: Earll M. Murman
Publisher:
Published: 1993
Total Pages: 14
ISBN-13:
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Publisher:
Published: 1995
Total Pages: 456
ISBN-13:
DOWNLOAD EBOOKLists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Andrew J. Majda
Publisher: Cambridge University Press
Published: 2002
Total Pages: 562
ISBN-13: 9780521639484
DOWNLOAD EBOOKThis book is a comprehensive introduction to the mathematical theory of vorticity and incompressible flow ranging from elementary introductory material to current research topics. While the contents center on mathematical theory, many parts of the book showcase the interaction between rigorous mathematical theory, numerical, asymptotic, and qualitative simplified modeling, and physical phenomena. The first half forms an introductory graduate course on vorticity and incompressible flow. The second half comprise a modern applied mathematics graduate course on the weak solution theory for incompressible flow.
Author: Sean Javad Kamkar
Publisher: Stanford University
Published: 2011
Total Pages: 218
ISBN-13:
DOWNLOAD EBOOKA new adaptive mesh refinement strategy that is based on a coupled feature-detection and error-estimation approach is developed. The overall goal is to apply the proper degree of refinement to key vortical features in aircraft and rotorcraft wakes. The refinement paradigm is based on a two-stage process wherein the vortical regions are initially identified for refinement using feature-detection, and then the appropriate resolution is determined by the local solution error. The feature-detection scheme uses a local normalization procedure that allows it to automatically identify regions for refinement with threshold values that are not dependent upon the convective scales of the problem. An error estimator, based on the Richardson Extrapolation method, then supplies the identified features with appropriate levels of refinement. The estimator is shown to be well-behaved for steady-state and time-accurate aerodynamic flows. The above strategy is implemented within the Helios code, which features a dual-mesh paradigm of unstructured grids in the near-body domain, and adaptive Cartesian grids in the off-body domain. A main objective of this work is to control the adaption process so that high fidelity wake resolution is obtained in the off-body domain. The approach is tested on several theoretical and practical vortex-dominated flow-fields in an attempt to resolve wingtip vortices and rotor wakes. Accuracy improvements to rotorcraft performance metrics and increased wake resolution are simultaneously documented.
Author: Alice Josephine Chen
Publisher:
Published: 1995
Total Pages: 205
ISBN-13:
DOWNLOAD EBOOKAuthor: Institute for Computer Applications in Science and Engineering
Publisher:
Published: 1991
Total Pages: 40
ISBN-13:
DOWNLOAD EBOOKAuthor: Max D. Gunzburger
Publisher: Cambridge University Press
Published: 2009-01-11
Total Pages: 0
ISBN-13: 9780521096225
DOWNLOAD EBOOKIncompressible computational fluid dynamics is an emerging and important discipline, with numerous applications in industry and science. Its methods employ rigourous mathematical analysis far beyond what is presently possible for compressible flows. Vortex methods, finite elements, and spectral methods are emphasised. Contributions from leading experts in the various sub-fields portray the wide-ranging nature of the subject. The book provides an entrée into the current research in the field. It can also serve as a source book for researchers and others who require information on methods and techniques.
Author: Charles R. Doering
Publisher: Cambridge University Press
Published: 1995
Total Pages: 236
ISBN-13: 9780521445689
DOWNLOAD EBOOKThis introductory physical and mathematical presentation of the Navier-Stokes equations focuses on unresolved questions of the regularity of solutions in three spatial dimensions, and the relation of these issues to the physical phenomenon of turbulent fluid motion.
Author: Antony Jameson
Publisher:
Published: 1994
Total Pages: 16
ISBN-13:
DOWNLOAD EBOOKAuthor: Coleman duP. Donaldson
Publisher:
Published: 1960
Total Pages: 242
ISBN-13:
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