Future Space-Transport-System Components under High Thermal and Mechanical Loads : Results from the DFG Collaborative Research Center TRR40.

Intro -- Preface -- Contents -- Collaborative Research for Future Space Transportation Systems -- 1 Introduction -- 2 Research Area A: Structural Cooling -- 2.1 Transpiration Cooled Ceramic Structures -- 2.2 Supersonic Film Cooling -- 2.3 Damping Performance of Resonators -- 3 Research Area B: Aft-Body Flows -- 3.1 Nozzle Flow Separation Studies -- 3.2 Interaction of Rocket Plume and External Flow -- 3.3 Modeling of Buffeting -- 4 Research Area C: Combustion Chamber -- 4.1 Dynamic Processes in Trans-Critical Jets -- 4.2 Injection, Mixing and Combustion Under Real-Gas Conditions -- 4.3 Boundary Layer Heat Transfer Modelling -- 4.4 Combustion Stability of Rocket Engines -- 5 Research Area D: Thrust Nozzle -- 5.1 Thermal Barrier Coatings and Component Life Prediction -- 5.2 Cooling Channel Flows -- 5.3 Fluid Structure Interaction -- 6 Research Area K: Thrust-Chamber Assembly -- 6.1 Combustion and Heat Transfer -- 6.2 Dual Bell Nozzle -- 6.3 Thrust-Chamber Demonstrators -- 7 Central Research and Education Support -- References -- Structural Cooling -- A Coupled Two-Domain Approach for Transpiration Cooling -- 1 Motivation -- 2 Mathematical Modeling -- 2.1 Hot Gas Domain -- 2.2 Porous Medium Domain -- 2.3 Coupling Conditions -- 3 Numerical Methods -- 4 Numerical Results -- 4.1 Non-uniform Injection into a Subsonic Hot Gas Channel Flow -- 4.2 Uniform Injection into a Supersonic Nozzle Flow -- 5 Conclusion -- References -- Innovative Cooling for Rocket Combustion Chambers -- 1 Introduction -- 2 Experimental Setup -- 2.1 Stacked Transpiration Cooling Specimen -- 2.2 Hot Gas Channel and Measurement Setup -- 3 Numerical Setup -- 4 Results and Interpretation of the Serial Transpiration Cooling Experiment -- 5 Summary and Outlook -- References -- Film Cooling in Rocket Nozzles -- 1 Motivation -- 2 Film Cooling Theory -- 2.1 Film Cooling Efficiency.

2.2 Film Cooling Model -- 3 Experimental Setup -- 3.1 Test Facility -- 4 Results Conical Nozzle -- 4.1 Reference Flow -- 4.2 Parametric Study -- 4.3 Correlation -- 5 Results Dual-Bell Nozzle -- 5.1 Experiments Without Film Cooling -- 5.2 Experiments with Film Cooling -- 6 Conclusion -- References -- Numerical Simulation of Film Cooling in Supersonic Flow -- 1 Introduction -- 2 Flow Configuration -- 2.1 Film Cooling -- 3 Numerical Method -- 4 Results -- 4.1 Influence of Coolant Mass Flow Rate -- 4.2 Influence of Coolant Mach Number -- 4.3 Influence of the Upstream Wall Temperature -- 4.4 Lip-Thickness Influence -- 4.5 Influence of the Coolant Velocity Profile -- 4.6 Correlation of Data -- 5 Conclusions and Outlook -- References -- Heat Transfer in Pulsating Flow and Its Impact on Temperature Distribution and Damping Performance of Acoustic Resonators -- 1 Introduction and Placement in SFB -- 2 Impact of Temperature Inhomogeneities on Damping Performance -- 3 Impact of Acoustic Oscillations on Heat Transfer -- 3.1 Wall Normal Heat Transfer -- 3.2 Longitudinal Heat Transfer -- 4 Summary and Conclusions -- References -- Aft-Body Flows -- Effects of a Launcher's External Flow on a Dual-Bell Nozzle Flow -- 1 Introduction -- 2 Experimental Setup -- 2.1 BFS Model -- 2.2 Measurement Techniques -- 3 Results -- 3.1 Steady-State Sea Level Mode -- 3.2 Steady-State Altitude Mode -- 3.3 Transition -- 4 Summary and Conclusions -- References -- Interaction of Wake and Propulsive Jet Flow of a Generic Space Launcher -- 1 Introduction -- 2 Experimental and Numerical Setup -- 2.1 Geometry and Test Cases -- 2.2 Experimental Setup -- 2.3 Numerical Setup -- 3 Results -- 3.1 Passive Flow Control on TIC Configuration -- 3.2 Analysis of Dual-Bell Transition-Effect of Reynolds Number -- 3.3 Analysis of Dual-Bell Transition-Influence of Afterbody Geometry -- 4 Summary.

References -- Rocket Wake Flow Interaction Testing in the Hot Plume Testing Facility (HPTF) Cologne -- 1 Introduction -- 2 The Hot Plume Testing Facility (HPTF) -- 2.1 Vertical Wind Tunnel Cologne (VMK) -- 2.2 GH2/GO2 Supply Facility -- 3 Characterization of HPTF for Wind Tunnel Testing -- 3.1 HPTF Characterization Test Setup -- 3.2 HPTF Characterization Test Results -- 4 Cold and Hot Plume Interaction Testing -- 4.1 GH2/GO2 Wind Tunnel Model -- 4.2 Test Program and Test Conditions -- 4.3 Wind Tunnel Test Results -- 5 Conclusions -- References -- Numerical Analysis of the Turbulent Wake for a Generic Space Launcher with a Dual-Bell Nozzle -- 1 Introduction -- 2 Computational Approach -- 2.1 Geometry and Flow Conditions -- 2.2 Zonal RANS/LES Flow Solver -- 2.3 Computational Mesh -- 3 Results -- 3.1 Supersonic Configuration -- 3.2 Transonic Configuration -- 4 Conclusions -- References -- Numerical Investigation of Space Launch Vehicle Base Flows with Hot Plumes -- 1 Introduction -- 2 Numerical Method and Setup -- 3 Results of Thermal Flow Structure Coupling -- 4 Investigation of Aft-Body Flow Fields -- 5 Conclusions and Outlook -- References -- Combustion Chamber -- On the Consideration of Diffusive Fluxes Within High-Pressure Injections -- 1 Introduction -- 2 Phenomenological Considerations on Mixing Jets -- 3 Numerical Consideration and Thermodynamic Modeling -- 3.1 Thermodynamic Modeling -- 4 Numerical Results: LES of N-Hexane/Nitrogen Jet -- 5 Conclusions -- References -- Numerical Investigation of Injection, Mixing and Combustion in Rocket Engines Under High-Pressure Conditions -- 1 Introduction -- 2 Physical and Mathematical Modeling -- 2.1 Governing Equations -- 2.2 Numerical Flow Solver -- 2.3 Thermodynamic Modeling -- 2.4 Combustion Modeling -- 3 Results and Discussion -- 3.1 Thermodynamics -- 3.2 Combustion -- 4 Conclusion -- References.

Large-Eddy Simulations for the Wall Heat Flux Prediction of a Film-Cooled Single-Element Combustion Chamber -- 1 Introduction -- 2 Governing Equations and Numerical Procedure -- 3 Test Case -- 3.1 Combustion Chamber Test Cases -- 3.2 Roughness Test Cases -- 4 Results -- 4.1 Combustion Chamber Results -- 4.2 Roughness Results -- 5 Conclusions -- References -- Calculation of the Thermoacoustic Stability of a Main Stage Thrust Chamber Demonstrator -- 1 Introduction -- 2 Test Case -- 3 Stability Assessment Procedure -- 3.1 Perturbation Analysis -- 3.2 Mean Flow -- 3.3 Flame Response -- 3.4 External Components and Design Adaption -- 4 Numerical Setup -- 4.1 Eigensolution Study -- 4.2 Single Flame -- 5 Results -- 5.1 Dome Acoustics -- 5.2 Coupled Acoustics -- 5.3 Stability Behavior -- 6 Conclusions -- References -- Experimental Investigation of Injection-Coupled High-Frequency Combustion Instabilities -- 1 Introduction -- 1.1 Summary of Previous Investigations -- 2 Experimental Technique -- 2.1 Experimental Setup -- 2.2 Methodology -- 3 Results and Discussion -- 3.1 Mean Flame Images -- 3.2 Dynamic Characteristics -- 3.3 LOX Core Dynamic Response to Excited Injector Eigenmodes -- 3.4 Damping Device to Reduce Risk of Injection-Coupled Instabilities -- 4 Summary and Conclusions -- References -- Thrust Nozzle -- Pseudo-transient 3D Conjugate Heat Transfer Simulation and Lifetime Prediction of a Rocket Combustion Chamber -- 1 Introduction -- 2 Conjugate Heat Transfer Simulation -- 2.1 Computational Model -- 2.2 Results and Validation -- 3 Lifetime Prediction -- 3.1 Transient Thermal Analysis -- 3.2 Quasi-static Mechanical Analysis -- 4 Conclusion -- References -- Lifetime Experiments of Regeneratively Cooled Rocket Combustion Chambers and PIV Measurements in a High Aspect Ratio Cooling Duct -- 1 Introduction -- 2 Fatigue Experiment -- 2.1 Experimental Set-Up.

2.2 Load Conditions -- 2.3 Load Phases -- 2.4 Deformations and Lifetime -- 3 Cooling Channel Measurements -- 3.1 Test Setup -- 3.2 Light Sheet Alignment -- 3.3 Window Size Analysis -- 3.4 Particle Shift -- 4 Conclusions -- References -- Mechanical Integrity of Thermal Barrier Coatings: Coating Development and Micromechanics -- 1 Introduction -- 2 Methods -- 2.1 Coating Process -- 2.2 Arc Heated Hypersonic Wind Tunnel -- 2.3 Subscale Combustion Chamber -- 3 Coating Design for a Large Scale Combustion Chamber -- 3.1 Mechanical Loads -- 3.2 Crack Propagation -- 4 Validation Tests -- 4.1 Arc Heated Hypersonic Wind Tunnel -- 4.2 Subscale Combustion Chamber -- 5 Conclusions -- References -- Assessment of RANS Turbulence Models for Straight Cooling Ducts: Secondary Flow and Strong Property Variation Effects -- 1 Introduction -- 2 High Aspect Ratio Cooling Duct -- 2.1 Equation System and Numerical Model -- 2.2 Simulation Setup -- 2.3 Flow and Temperature Field -- 3 Channel Flow with Strong Property Variations -- 3.1 Equation System and Numerical Model -- 3.2 Simulation Setup -- 3.3 Flow and Temperature Field -- 4 Summary and Conclusion -- References -- Experiments on Aerothermal Supersonic Fluid-Structure Interaction -- 1 Introduction -- 1.1 FSI and SWBLI -- 1.2 High Temperature FSI -- 2 Experiments on Aerothermoelastic FSI with SWBLI -- 2.1 Wind Tunnel H2K -- 2.2 Wind Tunnel Model and Instrumentation -- 2.3 Properties of the Elastic Panel -- 2.4 Experimental Results -- 3 Experiments on High Temperature FSI with Plastic Deformation -- 3.1 Arc-Heated Wind Tunnel L3K -- 3.2 Wind Tunnel Model and Instrumentation -- 3.3 Experimental Results -- 4 Conclusion -- References -- Numerical Modelling of Fluid-Structure Interaction for Thermal Buckling in Hypersonic Flow -- 1 Introduction -- 2 Fluid-Structure Interaction -- 3 Structural Model -- 3.1 Thermal Analysis.

3.2 Structural Analysis.

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Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2023. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.