granulate - définition. Qu'est-ce que granulate
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Qu'est-ce (qui) est granulate - définition

CONGLOMERATION OF DISCRETE SOLID, MACROSCOPIC PARTICLES
Granular matter; Granular substance; Granular Material; Granular flow; Granular mechanics; Granular materials modeling; Granular Materials Modeling; Granular materials; Glass granulate; Granular gas; Granular solid; Granular liquid
  • Jamming during discharge of granular material is due to arch formation (red spheres)
  • Examples of granular materials
  • Sand dunes
  • Chain of transmission of stress forces in a granular medium

Granulate         
  • Plastic granulation and [[pelletizing]] line; <!--LTR-->extrusion, cooling, and cutting
ACT OR PROCESS OF FORMING INTO GRAINS OR GRANULES
Granulate; Granulation (powder technology); Granulations; Granulated; Granulating; Granulation (making of granules); Granulation (process); Plastic granulation
·adj ·Alt. of Granulated.
II. Granulate ·vt To raise in granules or small asperities; to make rough on the surface.
III. Granulate ·vi To collect or be formed into grains; as, cane juice granulates into sugar.
IV. Granulate ·vt To form into grains or small masses; as, to granulate powder, sugar, or metal.
granulate         
  • Plastic granulation and [[pelletizing]] line; <!--LTR-->extrusion, cooling, and cutting
ACT OR PROCESS OF FORMING INTO GRAINS OR GRANULES
Granulate; Granulation (powder technology); Granulations; Granulated; Granulating; Granulation (making of granules); Granulation (process); Plastic granulation
I. v. a.
Form into grains, reduce to grains.
II. v. n.
Be formed into grains, become granular, roughen.
granulate         
  • Plastic granulation and [[pelletizing]] line; <!--LTR-->extrusion, cooling, and cutting
ACT OR PROCESS OF FORMING INTO GRAINS OR GRANULES
Granulate; Granulation (powder technology); Granulations; Granulated; Granulating; Granulation (making of granules); Granulation (process); Plastic granulation
¦ verb
1. [usu. as adjective granulated] form into or take the form of granules.
2. [often as adjective granulating] Medicine (of a wound or lesion) form multiple small prominences while healing.
3. [as adjective granulated] chiefly Biology having a roughened surface.
Derivatives
granulation noun
granulator noun

Wikipédia

Granular material

A granular material is a conglomeration of discrete solid, macroscopic particles characterized by a loss of energy whenever the particles interact (the most common example would be friction when grains collide). The constituents that compose granular material are large enough such that they are not subject to thermal motion fluctuations. Thus, the lower size limit for grains in granular material is about 1 μm. On the upper size limit, the physics of granular materials may be applied to ice floes where the individual grains are icebergs and to asteroid belts of the Solar System with individual grains being asteroids.

Some examples of granular materials are snow, nuts, coal, sand, rice, coffee, corn flakes, fertilizer, and bearing balls. Research into granular materials is thus directly applicable and goes back at least to Charles-Augustin de Coulomb, whose law of friction was originally stated for granular materials. Granular materials are commercially important in applications as diverse as pharmaceutical industry, agriculture, and energy production.

Powders are a special class of granular material due to their small particle size, which makes them more cohesive and more easily suspended in a gas.

The soldier/physicist Brigadier Ralph Alger Bagnold was an early pioneer of the physics of granular matter and whose book The Physics of Blown Sand and Desert Dunes remains an important reference to this day. According to material scientist Patrick Richard, "Granular materials are ubiquitous in nature and are the second-most manipulated material in industry (the first one is water)".

In some sense, granular materials do not constitute a single phase of matter but have characteristics reminiscent of solids, liquids, or gases depending on the average energy per grain. However, in each of these states, granular materials also exhibit properties that are unique.

Granular materials also exhibit a wide range of pattern forming behaviors when excited (e.g. vibrated or allowed to flow). As such granular materials under excitation can be thought of as an example of a complex system. They also display fluid-based instabilities and phenomena such as Magnus effect.