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Discrete Element Method
A discrete element method (DEM), also called a distinct element method, is any of a family of numerical methods for computing the motion and effect of a large number of small particles. Though DEM is very closely related to molecular dynamics, the method is generally distinguished by its inclusion of rotational degrees-of-freedom as well as stateful contact and often complicated geometries (including polyhedra). With advances in computing power and numerical algorithms for nearest neighbor sorting, it has become possible to numerically simulate millions of particles on a single processor. Today DEM is becoming widely accepted as an effective method of addressing engineering problems in granular and discontinuous materials, especially in granular flows, powder mechanics, and rock mechanics. DEM has been extended into the Extended Discrete Element Method taking heat transfer, chemical reaction and coupling to CFD and FEM into account. Discrete element methods are relatively com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Numerical Analysis
Numerical analysis is the study of algorithms that use numerical approximation (as opposed to symbolic computation, symbolic manipulations) for the problems of mathematical analysis (as distinguished from discrete mathematics). It is the study of numerical methods that attempt at finding approximate solutions of problems rather than the exact ones. Numerical analysis finds application in all fields of engineering and the physical sciences, and in the 21st century also the life and social sciences, medicine, business and even the arts. Current growth in computing power has enabled the use of more complex numerical analysis, providing detailed and realistic mathematical models in science and engineering. Examples of numerical analysis include: ordinary differential equations as found in celestial mechanics (predicting the motions of planets, stars and galaxies), numerical linear algebra in data analysis, and stochastic differential equations and Markov chains for simulating living ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homogenization (chemistry)
Homogenization or homogenisation is any of several processes used to make a mixture of two mutually non-soluble liquids the same throughout. This is achieved by turning one of the liquids into a state consisting of extremely small particles distributed uniformly throughout the other liquid. A typical example is the homogenization of milk, wherein the milk fat globules are reduced in size and dispersed uniformly through the rest of the milk. Definition Homogenization (from "homogeneous;" Greek, ''homogenes'': ''homos,'' same + ''genos,'' kind) is the process of converting two immiscible liquids (i.e. liquids that are not soluble, in all proportions, one in another) into an emulsion (Mixture of two or more liquids that are generally immiscible). Sometimes two types of homogenization are distinguished: primary homogenization, when the emulsion is created directly from separate liquids; and secondary homogenization, when the emulsion is created by the reduction in size of droplets ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact Plasticity
Contact may refer to: Interaction Physical interaction * Contact (geology), a common geological feature * Contact lens or contact, a lens placed on the eye * Contact sport, a sport in which players make contact with other players or objects * Contact juggling * Contact mechanics, the study of solid objects that deform when touching each other * Contact process (mathematics), a model of an interacting particle system * Electrical contacts * ''Sparśa'', a concept in Buddhism that in Sanskrit/Indian language is translated as "contact", "touching", "sensation", "sense impression", etc. Social interaction * Contact (amateur radio) * Contact (law), a concept related to visitation rights * Contact (social), a person who can offer help in achieving goals * Contact Conference, an annual scientific conference * Extraterrestrial contact, see Search for extraterrestrial intelligence * First contact (anthropology), an initial meeting of two cultures * Language contact, the interaction of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friction
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: *Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into ''static friction'' ("stiction") between non-moving surfaces, and ''kinetic friction'' between moving surfaces. With the exception of atomic or molecular friction, dry friction generally arises from the interaction of surface features, known as asperities (see Figure 1). *Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other. *Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces. *Skin friction is a component of drag, the force resisting the motion of a fluid across the surface of a body. *Internal friction is the force resisting motion between the elements making up a so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velocity
Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time (e.g. northbound). Velocity is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of bodies. Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called , being a coherent derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s or m⋅s−1). For example, "5 metres per second" is a scalar, whereas "5 metres per second east" is a vector. If there is a change in speed, direction or both, then the object is said to be undergoing an ''acceleration''. Constant velocity vs acceleration To have a ''constant velocity'', an object must have a constant speed in a constant direction. Constant direction cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Powder Metallurgy
Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders. PM processes can reduce or eliminate the need for subtractive processes in manufacturing, lowering material losses and reducing the cost of the final product. Powder metallurgy is also used to make unique materials impossible to get from melting or forming in other ways. A very important product of this type is tungsten carbide (WC). WC is used to cut and form other metals and is made from WC particles bonded with cobalt. It is very widely used in industry for tools of many types and globally ~50,000 tonnes/year (t/y) is made by PM. Other products include sintered filters, porous oil-impregnated bearings, electrical contacts and diamond tools. Since the advent of industrial production–scale metal powder–based additive manufacturing (AM) in the 2010s, selective laser sintering and other metal AM processes are a new category of commercially important p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cundall DEM
Cundall may refer to: *Cundall, North Yorkshire, a hamlet in England *Cundall Johnston and Partners, a multi-disciplinary Engineering Consultancy *Peter Cundall (1927–2021), horticulturalist and television personality in Australia * James Cundall (born 1959), British Theatrical Producer *Joseph Cundall Joseph Cundall (22 September 1818 – 10 January 1895) was a Victorian English writer under the pseudonym of "Stephen Percy", a pioneer photographer and London publisher of children's books. He provided employment for many of the best artists o ... (1818–1895), Victorian English writer, under the pseudonym of "Stephen Percy" See also * Cundell {{DEFAULTSORT:Cundall(Disambiguation) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antonio Bobet
Antonio is a masculine given name of Etruscan origin deriving from the root name Antonius. It is a common name among Romance language-speaking populations as well as the Balkans and Lusophone Africa. It has been among the top 400 most popular male baby names in the United States since the late 19th century and has been among the top 200 since the mid 20th century. In the English language it is translated as Anthony (given name), Anthony, and has some female derivatives: Antonia, Antónia, Antonieta, Antonietta, and Antonella'. It also has some male derivatives, such as Anthonio, Antón, Antò, Antonis, Antoñito (name), Antoñito, Antonino (name), Antonino, Antonello (name), Antonello, Tonio (name), Tonio, Tono (other), Tono, Toño, Toñín, Tonino (other), Tonino, Nantonio, Ninni, Toto (other), Totò, Tó, Tonini, Tony, Toni, Toninho, Toñito (name), Toñito, and Tõnis. The Portuguese equivalent is António (Portuguese orthography) or Antônio (Brazilia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nenad Bicanic
Nenad (; Cyrillic script: Ненад) is a male personal name of Slavic origin common in countries that speak Slavic languages. It is more widespread in Bosnia and Herzegovina, Slovenia, Croatia, Serbia, and North Macedonia than in other countries. The name is derived from the word ''nenadan'', which means "unexpected". It was introduced to North Macedonia via Serbian and is now a fairly popular name. This name is often given to the younger of twins, in this case usually paired with the name Predrag, from the epic Serbian folk song "Predrag i Nenad". People *Nenad Adamović, Serbian football player *Nenad Bach, Croatian-American composer *Nenad Begović, Serbian football player *Nenad Bjeković, former director of FK Partizan *Nenad Bjeković (footballer born 1974), Serbian football player *Nenad Bjelica, Croatian football player and coach *Nenad Bogdanović, former mayor of Belgrade *Nenad Brnović, Montenegrin football player *Nenad Buljan, Croatian Olympic swimmer *Nenad Č ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roger Owen (mathematician)
Roger Owen may refer to: *Roger Owen (historian) (1935–2018), British historian *Roger Owen (rugby) (1953–2021), Welsh rugby union, and rugby league footballer of the 1970s and 1980s *Roger Owen (MP) (1573–1617), English Member of Parliament *Roger Carmichael Robert Owen Lieutenant-Colonel Roger Carmichael Robert Owen CMG OBE (1866–1941) was a British Army officer who joined the Sudan service in 1903. He was Sudan Agent in Cairo from 1905 to 1908. Owen was then appointed Governor of Mongalla Province in Sout ... (1866–1941), British military officer * Roger Owen (lawyer), Irish lawyer and Crown official {{hndis, Owen, Roger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ante Munjiza
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Ante or Antes may refer to: * Ante (cards), an initial stake paid in a card game * Ante (poker), a forced bet in the game of poker * Ante (name), Croatian form of the given name Anthony * The Latin word ''ante'', meaning "before", which is used as a prefix in many Latin phrases. e.g. ''antebellum'', meaning "before a war" * Sivry-Ante, a municipality in the Marne department of France with two villages: Ante and Sivry-Ante * Antes (people) See also * Antes (other) *Anth (other) Anth may refer to the following: *''Anth'', short for ''Anth: A Dream for a Better Tomorrow'', 1994 Indian action film * ANTH domain, protein domain * Anth (name) See also * ANH (other) * Ankh (other) * Ant (other) *Ant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
