Approximate methods for weapon aerodynamics

Library	Item Barcode	Call Number	Material Type	Item Category 1	Status
Searching... PSZ JB	30000010082936	TL507 M66 2000	Open Access Book	Book	Searching... Unknown
Searching... PSZ KL	30000004999565	TL507 M66 2000	Open Access Book	Book	Searching... Unknown

A review of all approaches to calculate aerodynamics, allowing engineers to see the pros and cons of each approach, and setting the stage for a semi-empirical approach. It contains many approximate aerodynamic methods, bringing together both linearized and nonlinear aerodynamic methods. Frankie G. Moore has had 30 years' experience in weapons development and seeks to bridge the gap between the academic textbook and practical application. Practising engineers should value the book's emphasis on understanding the physics involved, understanding the assumptions made to get to the approximate approaches, and on showing final equations used in the solution process.

Author Notes

Dr. Moore earned his degrees in Aerospace Engineering from Virginia Polytechnic Institute. He has over 30 years of weapons systems experience at the Naval Surface Warfare Center, Dahlgren Division

Chapter 1 Introduction	p. 1
I. Weapon System Aerodynamic Requirements	p. 2
II. Uses of and Methods to Obtain Aerodynamics	p. 7
III. Tradeoffs in Methods Selection	p. 10
IV. Book Outline	p. 17
References	p. 17
Chapter 2 Navier-Stokes and Euler Equations	p. 19
I. Continuum Flow Assumption	p. 20
II. Navier-Stokes Equations	p. 22
III. Euler Plus Boundary Layer Plus Base Drag	p. 27
IV. Numerical Flowfield Solutions	p. 33
References	p. 33
Chapter 3 Perturbation Methods	p. 35
I. Introduction	p. 38
II. Component Buildup of Aerodynamics	p. 40
III. Linearized Flow and Slender Body Assumptions	p. 41
IV. Hybrid Theory of Van Dyke	p. 52
V. Lifting Surface Theory	p. 57
VI. Three-Dimensional Thin Wing Theory	p. 64
A. Axial Force Wave Drag	p. 65
B. Wing Normal Force and Center of Pressure	p. 72
C. Transonic Flow	p. 79
VII. Roll Damping Moment	p. 80
A. Subsonic Flow (M[subscript infinity] [ M[subscript crit])	p. 82
B. Supersonic Flow (M[subscript infinity] [greater than or equal] 1.2)	p. 83
C. Transonic Flow (M[subscript fb] [less than or equal] M[subscript infinity] [ 1.2)	p. 86
VIII. Pitch Damping Moment	p. 89
A. Subsonic Flow (M[subscript infinity] [ 0.8)	p. 90
B. Supersonic Flow (M[subscript infinity] [greater than or equal] 1.2)	p. 92
C. Transonic Flow (0.8 [less than or equal] M[subscript infinity] [ 1.2)	p. 95
IX. Interference Effects	p. 98
A. Wing-Body Interference	p. 98
B. Wing-Tail Interference	p. 103
References	p. 111
Chapter 4 Local Slope And Empirical Methods	p. 115
I. Tangent Wedge Method	p. 117
II. Tangent Cone Method	p. 119
III. Shock Expansion Theory	p. 123
IV. Newtonian Impact Theory	p. 132
V. Hybrid Theory of Van Dyke Plus Modified Newtonian Theory	p. 136
VI. Second-Order Shock Expansion Plus Modified Newtonian Theory	p. 140
VII. Skin Friction Drag	p. 143
VIII. Empirical Methods	p. 149
A. Transonic Wave Drag Prediction	p. 149
B. Viscous Separation and Rotating Band Drag	p. 151
C. Body-Alone Lift Properties for M[subscript infinity] [ 1.2	p. 154
D. Wing-Alone Normal Force at Transonic Speeds	p. 157
E. Base Drag	p. 161
IX. Configuration Aerodynamics at Low Angle of Attack	p. 169
References	p. 179
Chapter 5 Nonlinear Aerodynamic Approximations	p. 183
I. Nonlinear Aerodynamics Phenomena	p. 186
II. Body-Alone Normal Force and Center of Pressure	p. 191
III. Wing-Alone Normal Force and Center of Pressure	p. 200
IV. Wing-Body and Body-Wing Interference Due to Angle of Attack	p. 209
V. Wing-Body and Body-Wing Interference Due to Control Deflection	p. 237
VI. Nonlinear Wing-Tail Interference Model	p. 246
VII. Axial Force Coefficient at Angle of Attack	p. 258
VIII. Configuration Aerodynamics	p. 265
References	p. 291
Chapter 6 Aerodynamics of Noncircular Body Configurations	p. 295
I. Background and Survey of Nonaxisymmetric Body Methods	p. 297
II. Review of Jorgensen Method	p. 300
III. Body-Alone Axial Force Approach	p. 302
IV. Newtonian and Slender Body Theory Factors	p. 304
V. Reynolds Number Effect on Crossflow Drag Coefficient	p. 315
VI. Scaling Considerations Based on Slender Body Theory	p. 317
VII. Wing-Body Configurations with Noncircular Cross Sections	p. 323
VIII. Wing-Body-Tail Configurations	p. 330
IX. Variable Body Cross-Sectional Shapes	p. 330
X. Summary of Computational Procedure for Aerodynamics of Nonaxisymmetric Body Configurations	p. 331
XI. Comparison of Method to Experiment	p. 332
References	p. 346
Chapter 7 Aerodynamic Heating at Hypersonic Mach Numbers, Including Real Gas Effects	p. 349
I. Introduction	p. 351
II. Real Gas Computational Procedure	p. 353
III. Normal and Oblique Shock Waves in Real Gas Environments	p. 355
A. Normal Shock Waves	p. 356
B. Oblique Shock Waves: Two-Dimensional or Wedge Flows	p. 358
C. Oblique Shock Waves: Axisymmetric Conical Flows	p. 362
IV. Computation of Properties Across Expansion Waves in Real Gas Environments	p. 367
V. Modified Newtonian Theory for Real Gases	p. 375
A. Frozen Flow	p. 376
B. Equilibrium Flow	p. 378
VI. Second-Order Shock Expansion Theory for Real Gases	p. 379
VII. Aerodynamic Heating at Hypersonic Mach Numbers	p. 383
A. Entropy Layer Effects	p. 385
B. Engineering Approximations for Aeroheating	p. 388
C. Example Application of Approximate Methods for Boundary-Layer Heating	p. 395
References	p. 399
Chapter 8 Applications of Aerodynamics	p. 401
I. Introduction	p. 404
II. Structural Loads	p. 404
A. Background	p. 404
B. Approach to Distribute Loads	p. 405
C. Roll Position of [phis] = 0 deg	p. 407
D. Changes for the [phis] = 45 deg Roll Position	p. 412
E. Loads, Shear, and Bending Moments	p. 414
F. Method Application	p. 416
III. Minimum Drag Shapes	p. 423
IV. Multifin Weapon Aerodynamics	p. 429
A. Introduction and Background	p. 429
B. Approach and Analysis	p. 430
C. Computational Fluid Dynamics Predictions for Multifin Aerodynamics	p. 433
D. Comparison of New Method for Multifin Aerodynamics to Experiment	p. 439
V. Weapon Performance	p. 447
VI. Summary of Aerodynamic Prediction Methods	p. 453
References	p. 456
Chapter 9 Future Direction for Aeroprediction Methodology	p. 459
I. Semi-Empirical Code Requirements	p. 459
II. Computational Fluid Dynamics Code Needs	p. 461
References	p. 462
Index	p. 463

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