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For homogeneous fluids, the physical point at which the choking occurs for adiabatic conditions is when the exit plane velocity is at sonic conditions; i.e., at a Mach number of 1. [1] [2] [3] At choked flow, the mass flow rate can be increased only by increasing the upstream density of the substance.
It was the replacement of the DC08, and to all intents and purposes is virtually the same in appearance and design as the DC08. DC19T2 Origin no image: 2009: Same as DC19, but improved so that the brushbar can pick up on carpets and on hard floors. This model also used a plastic telescopic rod instead of the metal one found on the original DC19 ...
The following other wikis use this file: Usage on ar.wikipedia.org غلاف دايسون; هندسة فلكية; Usage on cs.wikipedia.org Dysonova sféra
In the extraction of petroleum (and other heavy-duty fluid handling contexts), a choke valve (or "choke") is an adjustable flow limiter that is designed to operate at a large pressure drop, at a large flow rate, for a long time.
The name comes from blocking—"choking"—high frequencies while passing low frequencies. It is a functional name; the name "choke" is used if an inductor is used for blocking or decoupling higher frequencies, but the component is simply called an "inductor" if used in electronic filters or tuned circuits.
Dyson Limited, d.b.a Dyson, is a Singaporean–British multinational technology company. [7] Founded in 1991 by James Dyson in Malmesbury , England, the company designs and manufactures household appliances such as vacuum cleaners , air purifiers , hand dryers , bladeless fans , heaters , hair dryers , and lights.
Only the hose and cleaning head need be carried from room to room, and the hose is commonly 8 m (25 ft) long, allowing a large range of movement without changing vacuum inlets. Plastic or metal piping connects the inlets to the central unit. The vacuum head may be unpowered, or have beaters operated by an electric motor or by an air-driven turbine
Sir James Dyson (born 2 May 1947) [2] is a British inventor, industrial designer, farmer, and business magnate who founded the Dyson company. [ 3 ] [ 4 ] He is best known as the inventor of the bagless vacuum cleaner , which works on the principle of cyclonic separation .