Which constraint causes after-burning instability in a jet engine?

💡 Explanation

Exceeding flammability concentrations (LEL/UEL) causes after-burning instability via deflagration to detonation transition (DDT) because the mixture reactivity runaway, resulting overpressure damages the engine; therefore detonation, rather than deflagration becomes dominant under limited conditions.

• Which outcome results when computational fluid dynamics (CFD) simulations underestimate mesh Reynolds number?
• Which risk increases when enriched uranium isotopes encounter supercritical water?
• Which process limits maximum current density in solid-state catalyst electrodes under electrochemical oxidation?
• Which phenomenon causes path deviation exhibited as gravitational lensing in a strong gravitational field?
• Which outcome often results when thin-film coated optics degrade?
• Which outcome results when gravitational mass increases inside a nuclear reactor core?