|
Alden Research Laboratory
Alden Research Laboratory, Inc. (Alden) (Holden, Massachusetts) was founded in 1894 as part of Worcester Polytechnic Institute (WPI). It is the oldest continuously operating hydraulic laboratory in the United States.The Role of Contributions of Hydraulic Testing Labs: Part I, Industrial Revolution to World War I. George Hecker, Albert Feron, Bruce J. Pennino. Civil Engineering Practice: Spring/Summer 1999 Today, as an independent entity, Alden has become a recognized leader in the field of fluid dynamics research and development. History Industrial Revolution In light of the industrial revolution, the widespread use of water powered mills, and the need for higher and higher efficiencies, Professor George I. Alden of WPI saw the need for a new lab. The Hydraulic Testing Lab at WPI was established in 1894 on the site of an old woolen mill donated to the institute by Stephen Salisbury III. It was the third of its kind in the US. The first two instruments obtained for the lab, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venturi Meter, Alden Research Laboratory - HAER 077091pu
Venturi may refer to: *Venturi (surname) Technology *Venturi tube *Ejector venturi scrubber, a wet scrubber *Venturi effect, a fluid or air flow effect *Venturi mask, a medical device *Venturi meter, a device for measuring the flow rate of fluids in a pipe *Venturi pump, a pump using the venturi effect *Venturi scrubber, gas stream scrubber *Venturi Transport Protocol, transport layer protocol Companies *Venturi Automobiles, an electric car manufacturer Motorsport *Venturi Grand Prix, a team competing in the FIA Formula E World Championship *For the team that competed as Venturi in the 1992 Formula One season, see Larrousse *See also: Venturini Motorsports, an American stock car team Places *Venturi, the Provençal Occitan name for Montagne Sainte-Victoire People * Robert Venturi Robert Charles Venturi Jr. (June 25, 1925 – September 18, 2018) was an American architect, founding principal of the firm Venturi, Scott Brown and Associates, and one of the major architect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Of The Art
The state of the art (sometimes cutting edge or leading edge) refers to the highest level of general development, as of a device, technique, or scientific field achieved at a particular time. However, in some contexts it can also refer to a level of development reached at any particular time as a result of the common methodologies employed at the time. The term has been used since 1910, and has become both a common term in advertising and marketing, and a legally significant phrase with respect to both patent law and tort liability. In advertising, the phrase is often used to convey that a product is made with the best or latest available technology, but it has been noted that "the term 'state of the art' requires little proof on the part of advertisers", as it is considered mere puffery. The use of the term in patent law "does not connote even superiority, let alone the superlative quality the ad writers would have us ascribe to the term". Origin and history The origin of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University And College Laboratories In The United States
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic Church monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word ''universitas'' (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calibration
In measurement technology and metrology, calibration is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy. Such a standard could be another measurement device of known accuracy, a device generating the quantity to be measured such as a voltage, a sound tone, or a physical artifact, such as a meter ruler. The outcome of the comparison can result in one of the following: * no significant error being noted on the device under test * a significant error being noted but no adjustment made * an adjustment made to correct the error to an acceptable level Strictly speaking, the term "calibration" means just the act of comparison and does not include any subsequent adjustment. The calibration standard is normally traceable to a national or international standard held by a metrology body. BIPM Definition The formal definition of calibration by the International Bureau of Weights and Measures (BIPM) is the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NIST
The National Institute of Standards and Technology (NIST) is an agency of the United States Department of Commerce whose mission is to promote American innovation and industrial competitiveness. NIST's activities are organized into physical science laboratory programs that include nanoscale science and technology, engineering, information technology, neutron research, material measurement, and physical measurement. From 1901 to 1988, the agency was named the National Bureau of Standards. History Background The Articles of Confederation, ratified by the colonies in 1781, provided: The United States in Congress assembled shall also have the sole and exclusive right and power of regulating the alloy and value of coin struck by their own authority, or by that of the respective states—fixing the standards of weights and measures throughout the United States. Article 1, section 8, of the Constitution of the United States, ratified in 1789, granted these powers to the new Congr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computational Fluid Dynamics
Computational fluid dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis and data structures to analyze and solve problems that involve fluid flows. Computers are used to perform the calculations required to simulate the free-stream flow of the fluid, and the interaction of the fluid ( liquids and gases) with surfaces defined by boundary conditions. With high-speed supercomputers, better solutions can be achieved, and are often required to solve the largest and most complex problems. Ongoing research yields software that improves the accuracy and speed of complex simulation scenarios such as transonic or turbulent flows. Initial validation of such software is typically performed using experimental apparatus such as wind tunnels. In addition, previously performed analytical or empirical analysis of a particular problem can be used for comparison. A final validation is often performed using full-scale testing, such as flight tests. CFD is appli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulic Ram
A hydraulic ram, or hydram, is a cyclic water pump powered by hydropower. It takes in water at one " hydraulic head" (pressure) and flow rate, and outputs water at a higher hydraulic head and lower flow rate. The device uses the water hammer effect to develop pressure that allows a portion of the input water that powers the pump to be lifted to a point higher than where the water originally started. The hydraulic ram is sometimes used in remote areas, where there is both a source of low-head hydropower and a need for pumping water to a destination higher in elevation than the source. In this situation, the ram is often useful, since it requires no outside source of power other than the kinetic energy of flowing water. History The Alhambra, built by Nasrid Sultan Ibn al-Ahmar of Granada beginning AD1238, used a hydram to raise water. Through a first reservoir, filled by a channel from the Darro River, water emptied via a large vertical channel into a second reservoir b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head Loss
Hydraulic head or piezometric head is a specific measurement of liquid pressure above a vertical datum., 410 pages. See pp. 43–44., 650 pages. See p. 22. It is usually measured as a liquid surface elevation, expressed in units of length, at the entrance (or bottom) of a piezometer. In an aquifer, it can be calculated from the depth to water in a piezometric well (a specialized water well), and given information of the piezometer's elevation and screen depth. Hydraulic head can similarly be measured in a column of water using a standpipe piezometer by measuring the height of the water surface in the tube relative to a common datum. The hydraulic head can be used to determine a ''hydraulic gradient'' between two or more points. "Head" in fluid dynamics In fluid dynamics, ''head'' is a concept that relates the energy in an incompressible fluid to the height of an equivalent static column of that fluid. From Bernoulli's principle, the total energy at a given point in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbines
A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating electrical power when combined with a generator.Munson, Bruce Roy, T. H. Okiishi, and Wade W. Huebsch. "Turbomachines." Fundamentals of Fluid Mechanics. 6th ed. Hoboken, NJ: J. Wiley & Sons, 2009. Print. A turbine is a turbomachine with at least one moving part called a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades so that they move and impart rotational energy to the rotor. Early turbine examples are windmills and waterwheels. Gas, steam, and water turbines have a casing around the blades that contains and controls the working fluid. Credit for invention of the steam turbine is given both to Anglo-Irish engineer Sir Charles Parsons (1854–1931) for invention of the reaction turbine, and to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World's Columbian Exposition
The World's Columbian Exposition (also known as the Chicago World's Fair) was a world's fair held in Chicago in 1893 to celebrate the 400th anniversary of Christopher Columbus's arrival in the New World in 1492. The centerpiece of the Fair, held in Jackson Park, was a large water pool representing the voyage Columbus took to the New World. Chicago had won the right to host the fair over several other cities, including New York City New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the U ..., Washington, D.C., and St. Louis. The exposition was an influential social and cultural event and had a profound effect on American Architecture of the United States, architecture, the arts, American industrial optimism, and Chicago's image. The layout of the Chicago Columbian Exposition was, in lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holden, Massachusetts
Holden is a town in Worcester County, Massachusetts, United States. The town was founded in 1741, and the Town Square (Center, Common) was donated by John Hancock, former Governor of Massachusetts. The population was 19,905 at the 2020 census. History Holden was named for Samuel Holden, a director of the Bank of England. Geography According to the United States Census Bureau, the town has a total area of , of which is land and , or 3.40%, is water. The landscape is compiled of hills and rivers, including the Quinapoxet. Holden is bounded on the west by Rutland, on the northwest by Princeton, on the east by Sterling and West Boylston, on the southeast by Worcester, and on the southwest by Paxton. Demographics As of the census of 2000, there were 15,621 people, 5,715 households, and 4,423 families residing in the town. The population density was . There were 5,827 housing units at an average density of . The racial makeup of the town was 97.39% White, 0.49% African Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_-_09.JPG "Click for more on -> University And College Laboratories In The United States")
