Ebook: Instability and Transition: Materials of the workshop held May 15–June 9, 1989 in Hampton, Virginia

The ability to predict and control viscous flow phenomena is becoming increasingly important in modern industrial application. The Instability and Transition Workshop at Langley was extremely important in help§ ing the scientists community to access the state of knowledge in the area of transition from laminar to turbulent flow, to identify promising future areas of research and to build future interactions between researchers worldwide working in the areas of theoretical, experimental and computational fluid and aero dynamics. The set of two volume contains panel discussions and research contribution with the following objectives: (1) expose the academic community to current technologically important issues of instability and transitions in shear flows over the entire speed range, (2) acquaint the academic community with the unique combination of theoretical, computational and experimental capabilities at LaRC and foster interaction with these facilities. (3) review current state-of-the-art and propose future directions for instability and transition research, (4) accelerate progress in elucidating basic understanding of transition phenomena and in transferring this knowledge into improved design methodologies through improved transition modeling, and (5) establish mechanism for continued interaction.

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The ability to predict and control viscous flow phenomena is becoming increasingly important in modern industrial application. The Instability and Transition Workshop at Langley was extremely important in help§ ing the scientists community to access the state of knowledge in the area of transition from laminar to turbulent flow, to identify promising future areas of research and to build future interactions between researchers worldwide working in the areas of theoretical, experimental and computational fluid and aero dynamics. The set of two volume contains panel discussions and research contribution with the following objectives: (1) expose the academic community to current technologically important issues of instability and transitions in shear flows over the entire speed range, (2) acquaint the academic community with the unique combination of theoretical, computational and experimental capabilities at LaRC and foster interaction with these facilities. (3) review current state-of-the-art and propose future directions for instability and transition research, (4) accelerate progress in elucidating basic understanding of transition phenomena and in transferring this knowledge into improved design methodologies through improved transition modeling, and (5) establish mechanism for continued interaction.
Content:
Front Matter....Pages i-xxiv
Front Matter....Pages 1-1
Group Summary: Advanced Asymptotics....Pages 3-4
Near-Planar Ts Waves and Longitudinal Vortices in Channel Flow: Nonlinear Interaction and Focussing....Pages 5-39
Amplitude-Dependent Neutral Modes in Compressible Boundary Layer Flows....Pages 40-66
Effects of Streamwise Curvature Variations on G?rtler Vortices....Pages 67-78
Front Matter....Pages 79-79
Group Summary: Boundary Layer Stability....Pages 81-82
The Effect of Approximations to the Thermodynamic Properties on the Stability of Compressible Boundary Layer Flow....Pages 83-98
Analysis of Three-Dimensional Structures in Boundary Layers....Pages 99-109
The Inviscid Stability of Supersonic Flow Past Axisymmetric Bodies....Pages 110-120
A Code for Linear Stability Analysis....Pages 121-144
On the Continuous Spectra of the Compressible Boundary Layer Stability Equations....Pages 145-159
Modulational Stability of Rotating-Disk Flow....Pages 160-170
Front Matter....Pages 171-171
Group Summary: Free Shear Flows....Pages 173-176
Bounded Free Shear Flows: Linear and Nonlinear Growth....Pages 177-186
On the Classification of Unstable Modes in Bounded Compressible Mixing Layers....Pages 187-198
Numerical Simulations of Compressible Mixing Layers....Pages 199-215
Accurate Calculation and Instability of Supersonic Wake Flows....Pages 216-229
Front Matter....Pages 231-231
Group Summary: Compressible Stability and Transition....Pages 233-234
Effect of Wall Suction and Cooling on the Second Mode Instability....Pages 235-245
On the Design of a New MACH 3.5 Quiet Nozzle....Pages 246-257
On the Modelling of Roughness Effects....Pages 258-267
Front Matter....Pages 231-231
The Stability of a Three Dimensional Laminar Boundary Layer Over A Swept Flat Plate....Pages 268-277
Front Matter....Pages 279-279
Group Summary: Transition Simulation 1....Pages 281-282
Direct Numerical Simulation of the Transitional Zone....Pages 283-299
Nonlinear Development of Crossflow Vortices....Pages 300-312
Instabilities in Rotating Channel Flow....Pages 313-329
Front Matter....Pages 331-331
Group Summary: Transition Simulation 2....Pages 333-334
A Study of Turbulence Models for Prediction of Transitional Boundary Layers....Pages 335-351
Numerical Simulation of Transition in a Rotating Disk Flow....Pages 352-363
Numerical Study of Subcritical Flow With Fluid Injection....Pages 364-393
Numerical Simulation of Spatially-Evolving Instability....Pages 394-407
Linear Spirals in the Finite Couette-Taylor Problem....Pages 408-425
Control of the Vortical Structure in the Early Stages of Transition in Boundary Layers....Pages 426-436
On The Numerical Simulation of Spatial Disturbances in a Blunt-Nose Flat Plate Flow....Pages 443-447
Front Matter....Pages 449-449
Group Summary: Transition Modeling....Pages 451-452
Comparison of Two Transition Models....Pages 453-459
Application of the Algebraic RNG Model for Transition Simulation....Pages 463-479
Application of Renormalization Group Theory to the Large-Eddy Simulation of Transitional Boundary Layers....Pages 480-496

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The ability to predict and control viscous flow phenomena is becoming increasingly important in modern industrial application. The Instability and Transition Workshop at Langley was extremely important in help§ ing the scientists community to access the state of knowledge in the area of transition from laminar to turbulent flow, to identify promising future areas of research and to build future interactions between researchers worldwide working in the areas of theoretical, experimental and computational fluid and aero dynamics. The set of two volume contains panel discussions and research contribution with the following objectives: (1) expose the academic community to current technologically important issues of instability and transitions in shear flows over the entire speed range, (2) acquaint the academic community with the unique combination of theoretical, computational and experimental capabilities at LaRC and foster interaction with these facilities. (3) review current state-of-the-art and propose future directions for instability and transition research, (4) accelerate progress in elucidating basic understanding of transition phenomena and in transferring this knowledge into improved design methodologies through improved transition modeling, and (5) establish mechanism for continued interaction.
Content:
Front Matter....Pages i-xxiv
Front Matter....Pages 1-1
Group Summary: Advanced Asymptotics....Pages 3-4
Near-Planar Ts Waves and Longitudinal Vortices in Channel Flow: Nonlinear Interaction and Focussing....Pages 5-39
Amplitude-Dependent Neutral Modes in Compressible Boundary Layer Flows....Pages 40-66
Effects of Streamwise Curvature Variations on G?rtler Vortices....Pages 67-78
Front Matter....Pages 79-79
Group Summary: Boundary Layer Stability....Pages 81-82
The Effect of Approximations to the Thermodynamic Properties on the Stability of Compressible Boundary Layer Flow....Pages 83-98
Analysis of Three-Dimensional Structures in Boundary Layers....Pages 99-109
The Inviscid Stability of Supersonic Flow Past Axisymmetric Bodies....Pages 110-120
A Code for Linear Stability Analysis....Pages 121-144
On the Continuous Spectra of the Compressible Boundary Layer Stability Equations....Pages 145-159
Modulational Stability of Rotating-Disk Flow....Pages 160-170
Front Matter....Pages 171-171
Group Summary: Free Shear Flows....Pages 173-176
Bounded Free Shear Flows: Linear and Nonlinear Growth....Pages 177-186
On the Classification of Unstable Modes in Bounded Compressible Mixing Layers....Pages 187-198
Numerical Simulations of Compressible Mixing Layers....Pages 199-215
Accurate Calculation and Instability of Supersonic Wake Flows....Pages 216-229
Front Matter....Pages 231-231
Group Summary: Compressible Stability and Transition....Pages 233-234
Effect of Wall Suction and Cooling on the Second Mode Instability....Pages 235-245
On the Design of a New MACH 3.5 Quiet Nozzle....Pages 246-257
On the Modelling of Roughness Effects....Pages 258-267
Front Matter....Pages 231-231
The Stability of a Three Dimensional Laminar Boundary Layer Over A Swept Flat Plate....Pages 268-277
Front Matter....Pages 279-279
Group Summary: Transition Simulation 1....Pages 281-282
Direct Numerical Simulation of the Transitional Zone....Pages 283-299
Nonlinear Development of Crossflow Vortices....Pages 300-312
Instabilities in Rotating Channel Flow....Pages 313-329
Front Matter....Pages 331-331
Group Summary: Transition Simulation 2....Pages 333-334
A Study of Turbulence Models for Prediction of Transitional Boundary Layers....Pages 335-351
Numerical Simulation of Transition in a Rotating Disk Flow....Pages 352-363
Numerical Study of Subcritical Flow With Fluid Injection....Pages 364-393
Numerical Simulation of Spatially-Evolving Instability....Pages 394-407
Linear Spirals in the Finite Couette-Taylor Problem....Pages 408-425
Control of the Vortical Structure in the Early Stages of Transition in Boundary Layers....Pages 426-436
On The Numerical Simulation of Spatial Disturbances in a Blunt-Nose Flat Plate Flow....Pages 443-447
Front Matter....Pages 449-449
Group Summary: Transition Modeling....Pages 451-452
Comparison of Two Transition Models....Pages 453-459
Application of the Algebraic RNG Model for Transition Simulation....Pages 463-479
Application of Renormalization Group Theory to the Large-Eddy Simulation of Transitional Boundary Layers....Pages 480-496
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