How Do You Spell REYNOLD'S TEST?

Pronunciation: [ɹˈɛnə͡ldz tˈɛst] (IPA)

The spelling of "Reynold's test" can be explained using the International Phonetic Alphabet (IPA). The word "Reynold" is pronounced as /ˈreɪnəld/ and the apostrophe indicates the possessive case. The word "test" is pronounced as /tɛst/. The term "Reynold's test" refers to a scientific procedure used to study fluid dynamics, named after Osborne Reynolds. The proper spelling is essential for accurate communication in the scientific community.

REYNOLD'S TEST Meaning and Definition

  1. Reynold's test, also known as the Reynold's number test or Reynold's experiment, is a fundamental scientific experiment and concept used to determine the type of flow, particularly in fluid mechanics. It is named after Osborne Reynolds, a British engineer and physicist, who conducted the experiment in the 1880s.

    In essence, Reynold's test is a dimensionless value that relates the forces of inertia to the forces of viscosity within a fluid flow. It is calculated by dividing the product of the fluid's velocity, density, and characteristic length by the fluid's dynamic viscosity. The characteristic length may refer to the diameter, radius, or length of an object or pipe through which the fluid is flowing.

    The resulting Reynold's number indicates whether the flow is laminar or turbulent. Laminar flow occurs when the Reynold's number is low, typically below 2,000, in which the fluid moves smoothly in layers without significant mixing or eddies. Conversely, turbulent flow occurs when the Reynold's number is high, typically above 4,000, characterized by chaotic and irregular fluid movement with significant mixing and eddies.

    Reynold's test is crucial as it helps classify the behavior of fluids in various scenarios. Its applications range from determining pipe flow, optimizing aerodynamics in vehicles and aircraft, understanding blood flow in the human body, predicting weather patterns, and designing efficient hydraulic systems. Overall, the Reynold's test serves as a valuable tool for engineers, physicists, and scientists in comprehending and analyzing fluid flow characteristics.

  2. For acetone: corrosive sublimate is added to the suspected fluid and then solution of caustic potassa until the reaction is alkaline; the addition of ammonium sulphate to the clear filtrate will throw down a precipitate of black sulphate of mercury if acetone is present.

    A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

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