Bernoulli effect

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Related to Bernoulli's principle: Pascal's principle, Bernoulli's equation

Ber·noul·li ef·fect

(bĕr-nū'lē),
the decrease in fluid pressure that occurs in converting potential to kinetic energy when motion of the fluid is accelerated, in accordance with Bernoulli law; applied in water aspirators, atomizers, and humidifiers in which a gas is accelerated across the end of a narrow, fluid-filled orifice.

Bernoulli effect

(Bĕr-noo′lē)
[Jakob Bernoulli, Swiss mathematician, 1654–1705]
In pulmonology, the inverse variation in pressure with gas velocity in tubal air flow.

Bernoulli,

Daniel, Swiss mathematician, 1700-1782.
Bernoulli effect - the decrease in fluid pressure that occurs in converting potential to kinetic energy when motion of the fluid is accelerated in accordance with Bernoulli law.
Bernoulli law - when friction is negligible, the velocity of flow of a gas or fluid through a tube is inversely related to its pressure against the side of the tube. Synonym(s): Bernoulli principle; Bernoulli theorem
Bernoulli principle - Synonym(s): Bernoulli law
Bernoulli theorem - Synonym(s): Bernoulli law
References in periodicals archive ?
Because Bernoulli's principle is illustrated in museums all over the world yet is a conceptually challenging topic to grasp, we hypothesized that the addition of AR could help visitors build better knowledge of the science behind the floating ball.
In this study, we examine how the digital augmentations in "Bernoulli Blower" can serve as a scaffold for learning about Bernoulli's principle. Briefly, the exhibit features a physical plastic ball that is able to float in midair because it is caught between the fast moving air coming from a blower attached to the exhibit and the slow moving air in the room.
Two qualitative data sets were collected, coded, and analyzed to determine how AR impacted students' conceptual knowledge of Bernoulli's principle.
The fourth MC question could be considered a far-transfer question, as it asked students to select a real-world situation that illustrated Bernoulli's principle. The OE response question depicted a similarly constructed device using common household materials and asked, Why do you think the plastic ball floats in the stream of fast-moving air?
These responses demonstrate the affordances of the AR as well as students' ability to acquire an accurate understanding of how Bernoulli's principle works in the brief time they were exposed to the exhibit during their museum visit.
From the interviews, we can see clear evidence of students' reasoning accurately about the inverse relationship between fluid speed and pressure in Bernoulli's principle (Hewitt, 2004)--they recognized that slower moving air has higher pressure and faster moving air has lower pressure.
Demonstrate Bernoulli's Principle with this link: http://adamone.
Use the "wing on a string" as an instructional tool to demonstrate the concepts related to Bernoulli's Principle.
Have the students explain in their own words (and with a diagram) how Bernoulli's Principle helps create lift on an airfoil.