Question

In rocket combustion phenomenon, the source that possibly triggers high-frequency pressure-wave instabilities is called

• A. chuffing
• B. popping
• C. bulk mode
• D. screaming

Hint:

Screaming indicates combustion instability often seen in high-speed burn.

Answer 1

The Correct Option is D

Solution: In the context of rocket combustion phenomena, high-frequency pressure-wave instabilities can be triggered by a phenomenon known as "screaming."

These instabilities occur due to complex interactions between the combustion process and the acoustic characteristics within the combustion chamber. "Screaming" is characterized by rapid oscillations in pressure, often leading to vibrations or even potential structural damage if not properly managed.

Therefore, the correct choice from the options given—chuffing, popping, bulk mode, and screaming—is screaming.