Bernoulli's principle - Revision history

Joceil.infante at 02:44, 14 September 2017

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Joceil.infante at 02:45, 23 March 2017

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Joceil.infante at 02:41, 23 March 2017

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Joceil.infante: Created page with "{{about| Bernoulli's principle and Bernoulli's equation in fluid dynamics|Bernoulli's theorem in probability|law of large numbers|an unrelated topic in ordinary differential..."

2017-01-17T01:04:14Z

Created page with "{{about| Bernoulli's principle and Bernoulli's equation in fluid dynamics|Bernoulli's theorem in probability|law of large numbers|an unrelated topic in ordinary differential..."

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← Older revision		Revision as of 02:44, 14 September 2017
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	# https://en.wikipedia.org/wiki/Bernoulli's_principle		# https://en.wikipedia.org/wiki/Bernoulli's_principle
	# http://philschatz.com/physics-book/contents/m42206.html		# http://philschatz.com/physics-book/contents/m42206.html
		+
		+	[[Category:Fluid Dynamics]]
		+	[[Category:Siphonic System Equations]]

@@ Line 1: / Line 1: @@
 (See also [[Bernoulli's Equation]])
-* In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. The principle is named after Daniel Bernoulli who published it in his book Hydrodynamica in 1738.
+* In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. The principle is named after [[Daniel Bernoulli]] who published it in his book Hydrodynamica in 1738.
 Bernoulli's principle can be applied to various types of fluid flow, resulting in various forms of Bernoulli's equation; there are different forms of Bernoulli's equation for different types of flow. The simple form of Bernoulli's equation is valid for incompressible flows (e.g. most liquid flows and gases moving at low Mach number). More advanced forms may be applied to compressible flows at higher Mach numbers (see the derivations of the Bernoulli equation).

← Older revision		Revision as of 02:44, 23 March 2017
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−	(See also ~~'''~~Bernoulli's Equation~~'''~~)	+	(See also [[Bernoulli's Equation]])
	* In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. The principle is named after Daniel Bernoulli who published it in his book Hydrodynamica in 1738.		* In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. The principle is named after Daniel Bernoulli who published it in his book Hydrodynamica in 1738.

← Older revision		Revision as of 02:41, 23 March 2017
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	This results in a forward force and even allows you to sail into the wind.		This results in a forward force and even allows you to sail into the wind.
		+
		+
		+	== References ==
		+	# https://en.wikipedia.org/wiki/Bernoulli's_principle
		+	# http://philschatz.com/physics-book/contents/m42206.html

@@ Line 13: / Line 13: @@
 Bernoulli’s Principle has many applications, including entrainment, wings and sails and velocity measurement.
-'''Entrainment'''
+== Entrainment ==
-People have long put the Bernoulli principle to work by using reduced pressure in high-velocity fluids to move things about. With a higher pressure on the outside, the high-velocity fluid forces other fluids into the stream. This process is called entrainment. Entrainment devices have been in use since ancient times, particularly as pumps to raise water small heights, as in draining swamps, fields, or other low-lying areas. Some other devices that use the concept of entrainment are shown in
+[[File:Bernoulli-App-Entrainment.jpg|center]]
-[[File:Example.jpg]]
+Examples of entrainment devices that use increased fluid speed to create low pressures, which then entrain one fluid into another. (a) A Bunsen burner uses an adjustable gas nozzle, entraining air for proper combustion. (b) An atomizer uses a squeeze bulb to create a jet of air that entrains drops of perfume. Paint sprayers and carburetors use very similar techniques to move their respective liquids. (c) A common aspirator uses a high-speed stream of water to create a region of lower pressure. Aspirators may be used as suction pumps in dental and surgical situations or for draining a flooded basement or producing a reduced pressure in a vessel. (d) The chimney of a water heater is designed to entrain air into the pipe leading through the ceiling

← Older revision	Revision as of 02:36, 23 March 2017
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	+	(See also '''Bernoulli's Equation''')
	+	* In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. The principle is named after Daniel Bernoulli who published it in his book Hydrodynamica in 1738.

	+	Bernoulli's principle can be applied to various types of fluid flow, resulting in various forms of Bernoulli's equation; there are different forms of Bernoulli's equation for different types of flow. The simple form of Bernoulli's equation is valid for incompressible flows (e.g. most liquid flows and gases moving at low Mach number). More advanced forms may be applied to compressible flows at higher Mach numbers (see the derivations of the Bernoulli equation).
	+
	+	Bernoulli's principle can be derived from the principle of conservation of energy. This states that, in a steady flow, the sum of all forms of energy in a fluid along a streamline is the same at all points on that streamline. This requires that the sum of kinetic energy, potential energy and internal energy remains constant. Thus an increase in the speed of the fluid – implying an increase in both its dynamic pressure and kinetic energy – occurs with a simultaneous decrease in (the sum of) its static pressure, potential energy and internal energy. If the fluid is flowing out of a reservoir, the sum of all forms of energy is the same on all streamlines because in a reservoir the energy per unit volume (the sum of pressure and gravitational potential ρ g h) is the same everywhere.
	+
	+	Bernoulli's principle can also be derived directly from Isaac Newton's Second Law of Motion. If a small volume of fluid is flowing horizontally from a region of high pressure to a region of low pressure, then there is more pressure behind than in front. This gives a net force on the volume, accelerating it along the streamline.
	+
	+	Fluid particles are subject only to pressure and their own weight. If a fluid is flowing horizontally and along a section of a streamline, where the speed increases it can only be because the fluid on that section has moved from a region of higher pressure to a region of lower pressure; and if its speed decreases, it can only be because it has moved from a region of lower pressure to a region of higher pressure. Consequently, within a fluid flowing horizontally, the highest speed occurs where the pressure is lowest, and the lowest speed occurs where the pressure is highest.
	+
	+	== Applications of Bernoulli’s Principle ==
	+	Bernoulli’s Principle has many applications, including entrainment, wings and sails and velocity measurement.
	+
	+	'''Entrainment'''
	+
	+	People have long put the Bernoulli principle to work by using reduced pressure in high-velocity fluids to move things about. With a higher pressure on the outside, the high-velocity fluid forces other fluids into the stream. This process is called entrainment. Entrainment devices have been in use since ancient times, particularly as pumps to raise water small heights, as in draining swamps, fields, or other low-lying areas. Some other devices that use the concept of entrainment are shown in
	+	[[File:Example.jpg]]