irrotational flow - определение. Что такое irrotational flow
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Что (кто) такое irrotational flow - определение

CONCEPT IN VECTOR CALCULUS
Irrotational; Irrotational field; Gradient field; Potential vector field; Conservative field; Curl free field; Curl-free vector field; Irrotational vector field; Irrotational flow; Irrotational Flow
  •  '''E''', electric field strength
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  • The above vector field <math>\mathbf{v} = \left( - \frac{y}{x^2 + y^2},\frac{x}{x^2 + y^2},0 \right)</math> defined on <math>U = \R^3 \setminus \{ (0,0,z) \mid z \in \R \}</math>, i.e., <math>\R^3</math> with removing all coordinates on the <math>z</math>-axis (so not a simply connected space), has zero curl in <math>U</math> and is thus irrotational. However, it is not conservative and does not have path independence.
  • Line integral paths used to prove the following statement: if the line integral of a vector field is path-independent, then the vector field is a conservative vector field.
  • Depiction of two possible paths to integrate. In green is the simplest possible path; blue shows a more convoluted curve
Найдено результатов: 774
Irrotational         
·adj Not rotatory; passing from one point to another by a movement other than rotation;
- said of the movement of parts of a liquid or yielding mass.
Conservative vector field         
In vector calculus, a conservative vector field is a vector field that is the gradient of some function. A conservative vector field has the property that its line integral is path independent; the choice of any path between two points does not change the value of the line integral.
Laplace equation for irrotational flow         
DIFFERENTIAL EQUATION IN FLUID MECHANICS
Laplace’s equation for irrotational flow
Irrotational flow occurs where the curl of the velocity of the fluid is zero everywhere. That is when
Traffic flow (computer networking)         
SEQUENCE OF PACKETS FROM A SOURCE COMPUTER TO A DESTINATION, WHICH MAY BE ANOTHER HOST, A MULTICAST GROUP, OR A BROADCAST DOMAIN
Packet flow; Communication flow; Flow (computer networking)
In packet switching networks, traffic flow, packet flow or network flow is a sequence of packets from a source computer to a destination, which may be another host, a multicast group, or a broadcast domain. RFC 2722 defines traffic flow as "an artificial logical equivalent to a call or connection.
lose one's self         
  • Flow may occur in challenging sports such as [[eventing]].
  • Young child, painting a model
MENTAL STATE
Flow state; Lose one's self; Flow (Psychology); Flow experience; Theory of Flow; Software time; Coder's high; Flow (psychology; Zone (psychology); In the Zone (psychology); In the zone (psychology); Team flow
1.
Be bewildered.
2.
Slumber, fall asleep.
Flow (psychology)         
  • Flow may occur in challenging sports such as [[eventing]].
  • Young child, painting a model
MENTAL STATE
Flow state; Lose one's self; Flow (Psychology); Flow experience; Theory of Flow; Software time; Coder's high; Flow (psychology; Zone (psychology); In the Zone (psychology); In the zone (psychology); Team flow
In positive psychology, a flow state, also known colloquially as being in the zone, is the mental state in which a person performing some activity is fully immersed in a feeling of energized focus, full involvement, and enjoyment in the process of the activity. In essence, flow is characterized by the complete absorption in what one does, and a resulting transformation in one's sense of time.
Stopped-flow         
  • Comparison of stopped flow with quenched flow for nitrogenase from ''Klebsiella pneumoniae''
  • stopped-flow observation head
  • Diagram of continuous flow spectrometer for reactions with half times of a few milliseconds
  • Diagrammatic sketch of a stopped flow instrument
  • Laminar flow (''left'') produces little or no mixing, but turbulent flow (''right'') produces very rapid mixing
  • Diagram of quenched flow apparatus for following reactions with half times of a few milliseconds
  • Single mixing stopped-flow based on independent stepping motors and using a hard-stop.
CHEMICAL EXPERIMENTAL TECHNIQUE
Quench flow; Quenched flow; Stopped flow
Stopped-flow is an experimental technique for studying chemical reactions with a half time of the order of 1 ms, introduced by Britton Chance and extended by Quentin Gibson (Other techniques, such as the temperature-jump method, are available for much faster processes.)
cash flow         
MOVEMENT OF MONEY INTO OR OUT OF A BUSINESS, PROJECT, OR FINANCIAL PRODUCT
Cashflow; Cash flows; Net cash flow; Cash Flow; Cash-flow; Company's cash flow; Cashflows
also cashflow
The cash flow of a firm or business is the movement of money into and out of it. (BUSINESS)
A French-based pharmaceuticals company ran into cash-flow problems and faced liquidation.
N-UNCOUNT
cashflow         
MOVEMENT OF MONEY INTO OR OUT OF A BUSINESS, PROJECT, OR FINANCIAL PRODUCT
Cashflow; Cash flows; Net cash flow; Cash Flow; Cash-flow; Company's cash flow; Cashflows
cash flow         
MOVEMENT OF MONEY INTO OR OUT OF A BUSINESS, PROJECT, OR FINANCIAL PRODUCT
Cashflow; Cash flows; Net cash flow; Cash Flow; Cash-flow; Company's cash flow; Cashflows
¦ noun the total amount of money passing into and out of a business, especially as affecting liquidity.

Википедия

Conservative vector field

In vector calculus, a conservative vector field is a vector field that is the gradient of some function. A conservative vector field has the property that its line integral is path independent; the choice of any path between two points does not change the value of the line integral. Path independence of the line integral is equivalent to the vector field under the line integral being conservative. A conservative vector field is also irrotational; in three dimensions, this means that it has vanishing curl. An irrotational vector field is necessarily conservative provided that the domain is simply connected.

Conservative vector fields appear naturally in mechanics: They are vector fields representing forces of physical systems in which energy is conserved. For a conservative system, the work done in moving along a path in a configuration space depends on only the endpoints of the path, so it is possible to define potential energy that is independent of the actual path taken.