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A number of dimensionless terms have been derived to describe and predict convection, including the Archimedes number, Grashof number, Richardson number, and the Rayleigh number. In cases of mixed convection (natural and forced occurring together) one would often like to know how much of the convection is due to external constraints, such as ...
However, the same mathematical analysis works equally well to other situations like particle flow. A general discontinuous finite element formulation is needed. [1] The unsteady convection–diffusion problem is considered, at first the known temperature T is expanded into a Taylor series with respect to time taking into account its three ...
Harris expanded on Bloomfield's distributional analysis by providing a more formal approach to syntactic structure, specifically in English sentence analysis. In the 1940s and 1950s, Harris introduced the concept of immediate constituents as the parts of a sentence that can be directly combined to form larger units, such as noun phrases (NPs ...
A sentence diagram is a pictorial representation of the grammatical structure of a sentence. The term "sentence diagram" is used more when teaching written language, where sentences are diagrammed. The model shows the relations between words and the nature of sentence structure and can be used as a tool to help recognize which potential ...
The Be number plays in forced convection the same role that the Rayleigh number plays in natural convection. In the context of mass transfer . the Bejan number is the dimensionless pressure drop along a channel of length L {\displaystyle L} : [ 4 ]
The Rossby number is the ratio of inertial force to Coriolis force, terms | | / and in the Navier–Stokes equations respectively. [ 1 ] [ 2 ] It is commonly used in geophysical phenomena in the oceans and atmosphere , where it characterizes the importance of Coriolis accelerations arising from planetary rotation .
A single value for CIN is calculated from one balloon ascent by use of the equation below. The z-bottom and z-top limits of integration in the equation represent the bottom and top altitudes (in meters) of a single CIN layer, T v , p a r c e l {\displaystyle T_{v,parcel}} is the virtual temperature of the specific parcel and T v , e n v ...
Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...