Results 191 to 200 of about 1,381,218 (267)

Model for Optic Nerve Sheath Decompression: Bernoulli's Principle Applied

open access: closedArchives of Ophthalmology, 1991
To the Editor. —We read with considerable interest and some skepticism the article by Seiff and Shah1describing a mechanism of optic nerve sheath fenestration. They suggest that Bernoulli's principle might explain the reduction in optic nerve head swelling noted after surgery, and they support their suggestion with some experimental results. See also
Alfred A. Sadun
semanticscholar   +4 more sources

Johann Bernoulli's brachistochrone solution using Fermat's principle of least time

open access: closedEuropean Journal of Physics, 1999
This is a lucid discussion of the brachistochrone problem, one of the famous problems in the history of mathematics and the main starting point of a new branch in mathematics: the calculus of variations. The problem is to determine the curve down which a particle will slide from one given point \(A\) to another \(B\) (not directly below) in the ...
Herman Erlichson
semanticscholar   +4 more sources

Flawed Applications of Bernoulli’s Principle

The Physics Teacher, 2018
One of the most popular demonstration experiments pertaining to Bernoulli’s principle is the production of a water spray by using a vertical plastic straw immersed in a glass of water and a horizontal straw to blow air towards the top edge of the vertical one.
Georgios Primerakis, Panagiotis Koumaras
openaire   +2 more sources

A simple wind tunnel to analyse Bernoulli’s principle [PDF]

open access: possiblePhysics Education, 2016
This paper describes two simple classroom experiments in which students can use their personal mobile device to illustrate a variant on the Bernoulli effect.
Stefano Macchia, Rebecca E. Vieyra
openaire   +2 more sources

Understanding Bernoulli’s principle through simulations

American Journal of Physics, 2011
Computer simulations are used to develop a deeper understanding of Bernoulli’s principle. Hard disks undergoing elastic collisions are injected into a Venturi nozzle and the pressure in the narrow throat of the nozzle is compared to the pressure in the wider section of the pipe.
Brian E. Faulkner, F. Marty Ytreberg
openaire   +3 more sources

Classic Bernoulli’s principle derivation and its working hypotheses [PDF]

open access: possiblePhysics Education, 2016
The Bernoulli's principle states that the quantity must be conserved in a streamtube if some conditions are matched, namely: steady and irrotational flow of an inviscid and incompressible fluid. In most physics textbooks this result is demonstrated invoking the energy conservation of a fluid material volume at two different positions of a pipe whose ...
E. Marciotto
openaire   +2 more sources

Management of colon stents based on Bernoulli’s principle

Indian Journal of Gastroenterology, 2017
The colonic self-expanding metal stent (SEMS) has been widely used for "bridge to surgery" and palliative therapy. However, if the spread of SEMS is insufficient, not only can a decompression effect not be obtained but also perforation and obstructive colitis can occur. The mechanism of occurrence of obstructive colitis and perforation was investigated
Y. Uno
openaire   +4 more sources

Formations of Matter, Light and Sound described with Bernoulli’s principle

AIP Conference Proceedings, 2007
Properties of Bernoulli’s principle are investigated. Assuming a velocity field, dynamics of a hurricane are described. In a multi‐scale model, formulas for gravitational red‐shift are recovered, by regarding the flow of light particles as a mixture with a Newtonian gravitating body. For sound in a mixture, a Doppler formula is deduced.
L. Strömberg
openaire   +3 more sources

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