The Bernoulli effect couples airflow velocity to reduced pressure at constrictions

Evidence

Then the golf balls will start moving with a velocity away from each other in order to get to the rarefacted state. Again the velocity toward the golf balls will become zero at the trough of the rarefaction. The velocity does not switch instantly from one direction to another, due to the inertia of the molecules involved; instead it accelerates smoothly from a stationary to a moving state and back again. The velocity component reaches its peak between the compressions and rarefactions, and for a sine wave displace­ ment component the associated velocity component is a cosine. — David Howard, Jamie Angus, coustics and Psychoacoustics, 144 (#expands, via linked claim)

Categorization

• XREF: connects to: Elastic recoil and momentum, not Bernoulli effect, mainly close the vocal folds; Lift on curved surfaces comes from a pressure gradient, not the Bernoulli effect; Bernoulli’s airflow across curved lips initiates their vibration (+3 more)

Related

• Curved-surface airflow, not the Bernoulli effect, drives lip vibration. (similarity 0.86)
• Lift on curved surfaces comes from a pressure gradient, not the Bernoulli effect (similarity 0.85)
• The vocal folds vibrate via pressure changes from curved airflow, not the Bernoulli effect (similarity 0.84)
• Molecular inertia makes air particle velocity change smoothly and continuously (similarity 0.82)
• Faster airflow through a constriction reduces pressure against the walls (similarity 0.82)
• Bernoulli’s airflow across curved lips initiates their vibration (similarity 0.81)
• Lip vibration self-sustains through Bernoulli pressure and elastic recoil (similarity 0.80)
• The Bernoulli effect is a wrong explanation for vocal fold vibration (similarity 0.79)

Broader Connections

• Lift on curved surfaces comes from a pressure gradient, not the Bernoulli effect #contradicts (0.90)
• Bernoulli’s airflow across curved lips initiates their vibration #expands (0.85)
• Molecular inertia makes air particle velocity change smoothly and continuously #expands (0.75) — David Howard, Jamie Angus, coustics and Psychoacoustics, 144