1.

Record Nr.

UNINA9910827763103321

Autore

Duffa Georges

Titolo

Ablative thermal protection systems modeling / / Georges Duffa

Pubbl/distr/stampa

Reston, Virginia : , : American Institute of Aeronautics and Astronautics, Inc., , [2013]

©2013

ISBN

1-62410-172-0

Descrizione fisica

1 online resource (402 p.)

Collana

AIAA education series

Disciplina

629.4/152

Soggetti

Ablation (Aerothermodynamics) - Mathematical models

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

CONTENTS --  PREFACE --  ACKNOWLEDGMENTS --  NOMENCLATURE --  Chapter 1 Thermal Protection System Conception --  1.1 Planetary Reentry --  1.2 Orders of Magnitude --  1.3 Major Classes of Materials for Thermal Protection Systems --  1.4 Physical Problems --  Chapter 2 Conservation Laws for a Multispecies Gaseous Medium --  2.1 Introduction --  2.2 Conservation Laws --  2.3 Diffusion in Neutral Medium --  2.4 Diffusion in Weakly Charged Media --  2.5 Calculation of Transport Coefficients --  2.6 Medium in Thermodynamic Nonequilibrium --  Chapter 3 Elementary Chemical Reactions Modeling -- 3.1 Gaseous Reactions -- 3.2 Heterogeneous Reactions -- 3.3 Relationship Between Homogeneous and Heterogeneous Reactions -- Chapter 4 Approximate Methods --  4.1 Introduction --  4.2 Reactive Laminar Boundary Layers --  4.3 Injection (Blowing or Blocking) Coefficient --  4.4 The Couette Problem Analogy --  4.5 Approximate Calculation of Stagnation Point Heat Flux --  4.6 Mass and Energy Balance at Wall --  4.7 Steady State Ablation --  Chapter 5 Ablation of Carbon --  5.1 Oxidation --  5.2 Reactions with Nitrogen --  5.3 Sublimation -- 5.4 Relations of Dependence --   5.5 Reaction Kinetics --   5.6 Homogeneous Reactions --   5.7 Example: Homogeneous Medium --   5.8 Partition of Energy --   5.9 Relation Between Incident Flux and Ablation --   5.10 Precision of the Ablation Model --   5.11 Example of Calculation: A Test with Constant Upstream Conditions --   Chapter 6 Roughness Formation --  6.1 General Considerations --  6.2



Scales of the Problem --  6.3 Reactivity of a Composite Material --  6.4 Roughness Formation --  6.5 Applications --  Chapter 7 Turbulence and Laminar-Turbulent Transition --  7.1 Coupling Between Turbulence and Surface State --  7.2 Nonlocal Effects of Turbulence --  7.3 Coupling Between Turbulence and Chemical Reactions --  7.4 Laminar-Turbulent Transition --  Chapter 8 Pyrolysis and Pyrolyzable Materials --  8.1 A Simple Example: PTFE --  8.2 Phenolic Resin --  8.3 The General Model --  8.4 The Different Levels of Solutions --  8.5 Transport Properties --  8.6 Application Example --  8.7 Ablation of Carbon Phenolics --   Chapter 9 Materials Developing a Liquid Layer --   9.1 Hydrodynamics of the Liquid Layer --   9.2 Silica-Resin Materials --   Chapter 10 Radiation --   10.1 Introduction --   10.2 Radiative Transfer Equation --   10.3 Effects of Coupling Between Flow and Radiation --   10.4 Radiation in Porous Media --   Chapter 11 Erosion by Particle Impact --   11.1 Introduction: Phenomenology --   11.2 Atmospheres --   11.3 Effect of Flow on the Particles --   11.4 Effect of Particles on the Flow --   11.5 Particle-Wall Interaction --   11.6 Coupling with Ablation --   11.7 Discussion --   Chapter 12 Testing and Specific Test Facilities --   12.1 Models Used in Reentry --   12.2 Plasma Jets --   12.3 Radiative Facilities --   12.4 Ablation Measurements  --   References  --Chapter 13 An Example: Apollo --13.1 Thermal Protection Design Requirements   --13.2 Avcoat Material --13.3 Pyrolysis and Gas Flow --13.4 Ablation --13.5 Radiation --References --Appendix A Approximate Solutions of Stefan–Maxwell Equation --Appendix B Approximation of Thermodynamic Properties --Appendix C System with Variable Elemental Composition --Appendix D Homogenization of an Inhomogeneous Rough Surface --Appendix E Mass Loss by Pyrolysis --Appendix F Water in Phenolic Composite Materials --Appendix G Radiative Transfer in a Plane Interface of Silica --Reference --Index --Supplemental Materials.