Author: Timothy Scott HaynesPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 148
Book Description
Stability Limits for Three-dimensional Supersonic Boundary-layer Flows
Author: Timothy Scott HaynesPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 148
Book Description
Stability Limits for Three-dimensional Supersonic Boundary Layers
Author: H. L. ReedThree-Dimensional Boundary-Layer Program (Bl3d) for Swept Subsonic Or Supersonic Wings with Application to Laminar Flow Control
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781731300218
Category : Science
Languages : en
Pages : 138
Book Description
The theory, formulation, and solution of three-dimensional, compressible attached laminar flows, applied to swept wings in subsonic or supersonic flow are discussed. Several new features and modifications to an earlier general procedure described in NASA CR 4269, Jan. 1990 are incorporated. Details of interfacing the boundary-layer computation with solution of the inviscid Euler equations are discussed. A description of the computer program, complete with user's manual and example cases, is also included. Comparison of solutions with Navier-Stokes computations with or without boundary-layer suction is given. Output of solution profiles and derivatives required in boundary-layer stability analysis is provided. Iyer, Venkit Unspecified Center BOUNDARY LAYER STABILITY; COMPRESSIBLE FLOW; COMPUTATIONAL FLUID DYNAMICS; INVISCID FLOW; LAMINAR BOUNDARY LAYER; SWEPT WINGS; THREE DIMENSIONAL FLOW; EULER EQUATIONS OF MOTION; NAVIER-STOKES EQUATION; SUBSONIC FLOW; SUPERSONIC FLOW; USER MANUALS (COMPUTER PROGRAMS)...
Effect of Distributed Three-dimensional Roughness and Surface Cooling on Boundary-layer Transition and Lateral Spread of Turbulence at Supersonic Speeds
Author: Albert L. BraslowPublisher:
ISBN:
Category : Numerical analysis
Languages : en
Pages : 48
Book Description
Boundary Layer and Flow Control
Author: G. V. LachmannPublisher: Elsevier
ISBN: 1483226662
Category : Technology & Engineering
Languages : en
Pages : 768
Book Description
Boundary Layer and Flow Control: Its Principles and Application, Volume 2 focuses on the layer of fluid in the immediate area of a bounding surface where the effects of viscosity are substantial. This book is organized into two main topics—boundary layer control for low drag, and shock-induced separation and its prevention by design and boundary layer control. It specifically discusses the nature of transition, effect of two-dimensional and isolated roughness on laminar flow, and progress in the design of low drag aerofoils. The onset of separation effects for aerofoils and wings, shock-induced separation for laminar boundary layers, and shock-induced separation for laminar boundary layers are also deliberated. This volume is recommended to physicists and specialists interested in boundary layer and flow control.
On the Effect of Boundary Layer Growth on the Stability of Compressible Flows
Author: Nabil M. El-HadyPublisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 52
Book Description
On Stability, Transition and Turbulence in Three-dimensional Boundary-layer Flows
Author: On the Stability of Three-Dimensional Boundary Layers
Author: Instabilities and Turbulence in Engineering Flows
Author: D. AshpisPublisher: Springer Science & Business Media
ISBN: 9401117438
Category : Technology & Engineering
Languages : en
Pages : 417
Book Description
This book contains contributions by colleagues, former students and friends of Professor Eli Reshotko in celebration of his 60th birth day. Since Professor Reshotko's scientific and engineering contribu tions have been in the areas of hydrodynamic stability, transition to turbulence, and boundary layer flows, it is only appropriate that the articles in this volume be devoted to these and related topics. The first two sections focus on instabilities and transition in sub sonic and supersonic flows, respectively. The third section deals with developing turbulence, while the the final section treats related prob lems in engineering fluid mechanics. The diversity and scope of the articles contained herein exemplify the insight and expertise required in the study of transitional and turbulent flows today - traits which also exemplify Eli Reshotko's contributions to these fields. A few of the articles in this volume were presented at a sym posium in honor of Eli Reshotko's 60th birthday, held in Newport News, Virginia, on July 28, 1991. The symposium was sponsored by lCASE, and organized by M.Y. Hussaini (lCASE) and R. Hirsh (U.S. National Science Foundation). Of those who could not attend, many chose to honor Professor Reshotko by a contribution to the volume dedicated to him. We would like to use this opportunity to express our deep ap preciation to M.Y. Hussaini for initiating this very special tribute to Eli, and to Ms. Emily Todd for her efforts in the volume preparation and in the organization of the symposium.
Three-dimensional Laminar Boundary-layer Analysis of Upwash Patterns and Entrained Vortex Formation on Sharp Cones at Angle of Attack
Author: John C. Adams (Jr.)Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 124
Book Description
Application of three-dimensional inviscid and viscous (laminar boundary layer) analyses for cold wall hypersonic flows over sharp cones at incidence is presented relative to experimental data, showing surface upwash angles and entrained vortex formation leading to crossflow-induced boundary-layer transition. Three-dimensional neutral inviscid stability theory for stationary disturbances is used to calculate the angular orientation of the entrained vortices in the boundary layer while a maximum crossflow Reynolds number concept is applied for correlation of the onset to vortex formation due to crossflow instability.