- fluid parcel
- 流体块
Atmospheric Sciences (English-Chinese) dictionary. 2014.
fluid parcel
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Fluid parcel — In fluid dynamics, within the framework of continuum mechanics, a fluid parcel is a very small amount of fluid, identifiable throughout its dynamic history while moving with the fluid flow.[1] As it moves, the mass of a fluid parcel remains… … Wikipedia
Fluid dynamics — Continuum mechanics … Wikipedia
parcel — I. noun Etymology: Middle English, from Anglo French parcele, from Vulgar Latin *particella, from Latin particula small part more at particle Date: 14th century 1. a. fragment, portion b. a volume of a fluid (as air) considered as a single entity … New Collegiate Dictionary
Helicity (fluid mechanics) — this page is about helicity in fluid mechanics. For helicity of magnetic fields, see magnetic helicity. For helicity in particle physics, see helicity (particle physics). In fluid mechanics, helicity is the extent to which corkscrew like motion… … Wikipedia
Air parcel — An air parcel is an imaginary volume of air used by meteorologists to conceptualize the thermodynamic fluid motions of the atmosphere for use in weather forecasting. For mathematical simplicity, an air parcel is usually considered a rigid cube… … Wikipedia
Bernoulli's principle — This article is about Bernoulli s principle and Bernoulli s equation in fluid dynamics. For Bernoulli s Theorem (probability), see Law of large numbers. For an unrelated topic in ordinary differential equations, see Bernoulli differential… … Wikipedia
Stokes drift — For a pure wave motion in fluid dynamics, the Stokes drift velocity is the average velocity when following a specific fluid parcel as it travels with the fluid flow. For instance, a particle floating at the free surface of water waves,… … Wikipedia
Potential density — The potential density of a fluid parcel at pressure P is the density that the parcel would acquire if adiabatically brought to a reference pressure P {0}, often 1 bar (100 kPa). Whereas density changes with changing pressure, potential density of … Wikipedia
Lagrangian and Eulerian specification of the flow field — This article is about fluid mechanics. For the use of generalized coordinates in classical mechanics, see generalized coordinates, Lagrangian mechanics and Hamiltonian mechanics In fluid dynamics and finite deformation plasticity the Lagrangian… … Wikipedia
Mixing length model — The mixing length is a distance that a fluid parcel will keep its original characteristics before dispersing them into the surrounding fluid. Here, the bar on the left side of the figure is the mixing length … Wikipedia
Gravity wave — In fluid dynamics, gravity waves are waves generated in a fluid medium or at the interface between two media (e.g. the atmosphere or ocean) which has the restoring force of gravity or buoyancy.When a fluid parcel is displaced on an interface or… … Wikipedia
