Aerodynamic Heating in Supersonic and Hypersonic Flows: Advanced Techniques for Drag and Aero-heating Reduction

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Aerodynamic Heating in Supersonic and Hypersonic Flows
Aerodynamic Heating in Supersonic andHypersonic Flows: Advanced Techniques for Dragand Aero-heating ReductionMostafa
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Contents
Biography
1 - Introduction
1.1 Introduction
1.2 Structure of the flow field around the super/hypersonic vehicles
1.3 Governing equations for supersonic/hypersonic flow
1.4 Effects of Mach on flow characteristics
1.5 Aeroheating
1.6 Key factors in the hypersonic regime
1.6.1 Bow shock
1.6.2 Aerodynamic heating
1.6.3 Surface pressure effects
1.6.4 Temperature effects
1.6.5 Viscous effects
1.6.6 Entropy gradient
1.6.7 Shock layer
1.7 Nondimensional numbers
1.8 Different techniques for the thermal protection and drag reduction of space vehicles
References
2 - Mechanical techniques (spike)
2.1 Structural devices (mechanical spike)
2.1.1 Principle of mechanical spike
2.1.2 Concept of spike
2.2 Literature survey
2.2.1 Experimental investigations
2.2.2 Computational investigations
2.3 Unsteady structure of flow around spiked bodies
2.3.1 Pulsation modes
2.3.1.1 Self-sustained oscillatory flows
2.3.1.1.1 Collapse process
2.3.1.1.2 Inflation process: (frames 10–20)
2.3.1.1.3 Withhold: frame 21–30
2.3.1.1.4 Hypersonic considerations
2.3.2 Oscillation mode
2.3.2.1 Required reattachment pressure
2.3.2.2 Potential reattachment pressure
2.3.2.3 Bounding and escape streamlines
2.3.2.4 Energetic shear-layer hypothesis
2.4 Advanced contributions
2.4.1 Drag reduction mechanism in spiked blunt bodies
2.4.2 Main parameters associated with effective body shape
2.4.3 Impacts of aerodisks on mechanism of aeroheating reduction
2.4.4 Effect of the aerodisk and the spike on the base drag
2.4.5 Instability of flow nearby spiked hemispherical bodies
2.4.6 Reconsidering of flow axisymmetry assumption at zero incidences
2.5 Forebody design optimization of spiked hypersonic vehicles
2.6 New approaches on mechanical spikes
2.7 Future outline in the field of mechanical spikes
2.8 Practical application of mechanical spikes in real systems
References
3 - Fluidic techniques: opposing (counterflow) jets
3.1 Principle mechanism of counterflow jets
3.2 Flow structure of opposing jet
3.3 Effects of angle of attack
3.4 Factors controlling the effectiveness of counterflow
3.5 Strength of counterflow jet
3.6 Literature survey of main preceding works on opposing jets
3.7 Computational studies
3.8 Counterflow jets and related flow unsteadiness
3.9 Nonconventional aspects of opposing jets
3.10 Counterflow jet device and its derivatives
3.10.1 Counterflow plasma jets
3.10.2 Joint cavity-jet device
3.11 Potential gaps in the field of opposing jets
3.12 Design tradeoffs and issues of the practical application of counterflow jet in real systems
References
4 - Energetic (thermal) devices: energy deposition devices
4.1 Effective parameters for the performance of energy deposition devices
4.1.1 Influence of bow-shock intensity variation
4.1.2 Effect of heating power
4.1.3 Impacts of bow-shock intensity on the drag of the conical-nosed bodies
4.1.4 Impacts of heating power on the drag force of the hemisphere-cylinder model
4.2 Survey on key studies on energy deposition devices
4.3 Future outlines in the field of energy deposition devices
4.4 Design tradeoffs and challenges of real application of energy deposition devices in real systems
References
5 - Hybrid technique
5.1 Fluid-structure devices
5.1.1 Flow study of Fluidic-Structural devices
5.1.2 Tips and notes on structural fluidic devices
5.2 Structural-energetic devices
5.3 Current practical applications for forebody shock control devices
References
6 - Current practical applications for forebody shock control devices
6.1 Conclusion and recommendations
6.2 Future perspective
References
Index
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V
W
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