What question did this study set out to answer?

To identify the gas-dynamic conditions under which standing oblique detonation waves remain attached and stable past wedges in supersonic combustible flows.

September 1, 1991Journal of Propulsion and Power

Morphology of standing oblique detonation waves

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Authors

DPDavid T. PrattUniversity of Washington JHJOSEPH HUMPHREYCalifornia Institute of Technology DGDennis E. GlennBabcock & Wilcox (United States)

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Implication

Theoretical analysis reveals stabilization boundaries for oblique detonation waves in supersonic combustible gas flows, indicating viable operating windows for hypersonic propulsion systems.

Key Points

To identify the gas-dynamic conditions under which standing oblique detonation waves remain attached and stable past wedges in supersonic combustible flows.
Conducted a theoretical gas-dynamic analysis of combustible gas mixtures flowing at supersonic speeds past an inclined wall or wedge.
Evaluated wave attachment, detachment limits, and combustion morphology relative to reactant Chapman-Jouguet velocities and turning angles.
Approach velocities roughly 25% or more above the Chapman-Jouguet velocity establish a wide, usable range of turning angles for stabilized oblique detonation waves.
Wedge angles below the stabilization window cause incomplete oblique detonations, shock-induced combustion, or total extinction, whereas excessive wedge angles force wave detachment into normal detonations or bifurcated shock-deflagration structures.

Cite This Study

Pratt et al. (1991) studied this question.

synapsesocial.com/papers/69df333bacbf09c32e6145c5 https://doi.org/10.2514/3.23399

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Implication

Theoretical analysis reveals stabilization boundaries for oblique detonation waves in supersonic combustible gas flows, indicating viable operating windows for hypersonic propulsion systems.

Morphology of standing oblique detonation waves

Discussion

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Implication

Key Points

Cite This Study

Morphology of standing oblique detonation waves

Discussion

Member takes

Implication

Key Points

Cite This Study

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