- Particle Image Velocimetry
- Physics: PIV
Универсальный русско-английский словарь. Академик.ру. 2011.
Particle Image Velocimetry
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Particle image velocimetry — (PIV) is an optical method used to measure velocities and related properties in fluids. The fluid is seeded with particles which, for the purposes of PIV, are generally assumed to faithfully follow the flow dynamics. It is the motion of these… … Wikipedia
Particle Image Velocimetry — (PIV) ist ein berührungsloses optisches Verfahren zur Bestimmung von Geschwindigkeitsfeldern in der Strömungsmechanik. In kurzem zeitlichen Abstand werden Partikel im Fluid fotografiert. Aus den Partikelpositionen auf den Bildern kann die… … Deutsch Wikipedia
Particle tracking velocimetry — (PTV) is one of velocimetry methods, i.e a technique to measure velocity of particles. The name suggests that the particles are tracked, and not only recorded as an image as it is suggested in another form, particle image velocimetry. There are… … Wikipedia
Surface Pattern Image Velocimetry — (deutsch, Oberflächenmustergeschwindigkeitsmessung aus Bildern) ist ein berührungsloses optisches Messverfahren zur Bestimmung von Geschwindigkeitsfeldern in der Strömungsmechanik. Im Unterschied zur Particle Image Velocimetry wird hierbei nicht… … Deutsch Wikipedia
Velocimetry — is the measurement of the velocity of fluids, as often used to solve fluid dynamics problems, or to study fluid networks, as well as in industrial and process control applications, or in the creation of new kinds of fluid flow sensors. Methods of … Wikipedia
Particle velocity — is the velocity v of a particle (real or imagined) in a medium as it transmits a wave. In many cases this is a longitudinal wave of pressure as with sound, but it can also be a transverse wave as with the vibration of a taut string. When applied… … Wikipedia
Particle displacement — or particle amplitude (represented in mathematics by the lower case Greek letter xi;) is a measurement of distance (in metres) of the movement of a particle in a medium as it transmits a wave. In most cases this is a longitudinal wave of pressure … Wikipedia
Molecular tagging velocimetry — (MTV) is a specific form of flow velocimetry, a technique for determining the velocity of currents in fluids such as air and water. In its simplest form, a single write laser beam is shot once through the sample space. Along its path an optically … Wikipedia
Laser Doppler velocimetry — (LDV, also known as laser Doppler anemometry, or LDA) is a technique for measuring the direction and speed of fluids (or any other material that is processed like metal, paper etc) like air and water. In its simplest form, LDV crosses two beams… … Wikipedia
Digital image correlation — and Tracking (DIC/DDIT) is an optical method that employs tracking image registration techniques for accurate 2D and 3D measurements of changes in images. This is often used to measure deformation (engineering), displacement, and strain, but it… … Wikipedia
Planar Doppler velocimetry — (PDV), also referred to as Doppler Global Velocimetry (DGV), determines flow velocity across a plane by measuring the Doppler shift in frequency of light scattered by particles contained in the flow. The Doppler shift, Δfd, is related to the… … Wikipedia
