Jet instability makes some noise from fast air streams physically unavoidable
Evidence
We now know why a certain amount of jet noise is inevitable: fast air jets are inherently unstable and cannot be controlled, and that instability leads to puffs of air “punching” out at nearby stiller air, resulting inexorably in sound production. — Eric J. Heller, Why You Hear What You Hear- An…, 1345
Categorization
Category: Causal Relationships
Related
- Fast air jets are inherently unstable and inevitably produce sound (similarity 0.95)
- A jet’s natural instability produces noise unless vortices periodicize (similarity 0.89)
- Higher Reynolds numbers yield broader, higher-frequency jet noise than lower ones (similarity 0.83)
- Jet turbulence noise shifts from high to low frequencies as eddies decay downstream (similarity 0.82)
- Jet instability makes it easy for resonance to control vortex timing (similarity 0.81)
- Airplane engine loudness fluctuations stem from scintillation, not an unsteady pilot (similarity 0.80)
- A free jet generates periodic vortices without any resonator (similarity 0.79)
Broader Connections
- Flute tone arises from jet instability locked to tube resonances
#exemplifies(0.78) — Eric J. Heller, Why You Hear What You Hear- An…, 1569