Scientific and Technical Aerospace Reports
Scientific and Technical Aerospace Reports

Author:

Publisher:

Published: 1995

Total Pages: 456

ISBN-13:

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Lists 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.

A Numerical Study of the 2- And 3-Dimensional Unsteady Navier-Stokes Equations in Velocity-Vorticity Variables Using Compact Difference Schemes
A Numerical Study of the 2- And 3-Dimensional Unsteady Navier-Stokes Equations in Velocity-Vorticity Variables Using Compact Difference Schemes

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-07-25

Total Pages: 28

ISBN-13: 9781724216175

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A compact finite-difference approximation to the unsteady Navier-Stokes equations in velocity-vorticity variables is used to numerically simulate a number of flows. These include two-dimensional laminar flow of a vortex evolving over a flat plate with an embedded cavity, the unsteady flow over an elliptic cylinder, and aspects of the transient dynamics of the flow over a rearward facing step. The methodology required to extend the two-dimensional formulation to three-dimensions is presented. Gatski, T. B. and Grosch, C. E. Langley Research Center NASA-CR-172353, ICASE-84-15, NAS 1.26:172353 NAS1-17070

DNS of Wall-Bounded Turbulent Flows
DNS of Wall-Bounded Turbulent Flows

Author: Tapan K. Sengupta

Publisher: Springer

Published: 2018-06-07

Total Pages: 393

ISBN-13: 9811300380

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This book highlights by careful documentation of developments what led to tracking the growth of deterministic disturbances inside the shear layer from receptivity to fully developed turbulent flow stages. Associated theoretical and numerical developments are addressed from basic level so that an uninitiated reader can also follow the materials which lead to the solution of a long-standing problem. Solving Navier-Stokes equation by direct numerical simulation (DNS) from the first principle has been considered as one of the most challenging problems of understanding what causes transition to turbulence. Therefore, this book is a very useful addition to advanced CFD and advanced fluid mechanics courses.

Computational Aerodynamics and Aeroacoustics
Computational Aerodynamics and Aeroacoustics

Author: Tapan K. Sengupta

Publisher: Springer Nature

Published: 2020-05-12

Total Pages: 573

ISBN-13: 9811542848

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Recent advances in scientific computing have caused the field of aerodynamics to change at a rapid pace, simplifying the design cycle of aerospace vehicles enormously – this book takes the readers from core concepts of aerodynamics to recent research, using studies and real-life scenarios to explain problems and their solutions. This book presents in detail the important concepts in computational aerodynamics and aeroacoustics taking readers from the fundamentals of fluid flow and aerodynamics to a more in-depth analysis of acoustic waves, aeroacoustics, computational modelling and processing. This book will be of use to students in multiple branches of engineering, physics and applied mathematics. Additionally, the book can also be used as a text in professional development courses for industry engineers and as a self-help reference for active researchers in both academia and the industry.