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Mach angle

См. также в других словарях:

  • Mach angle — The acute angle between a weak shock wave and a free stream airflow. Hence, at Mach 1, the Mach angle is 90°, and, thereafter, its value is equal to sin−1 × 1/M. It is represented by the symbol μ. See also Mach cone …   Aviation dictionary

  • mach angle — ˈmäk , ˈmȧk noun Usage: usually capitalized M Etymology: after Ernst Mach died 1916 Austrian physicist and philosopher : half of the vertex angle of a Mach cone whose sine is the ratio of the speed of sound to the speed of a moving body …   Useful english dictionary

  • Mach 1 —    , MACH NUMBER    When airplanes first started to fly, their speed was measured like that of a moving vehicle on the ground. As air speeds increased, that method became obsolete, and a new method had to be found.    Ernst Mach (1838 1916), an… …   Dictionary of eponyms

  • angle de Mach — ● angle de Mach Angle fait par une ligne de Mach avec la direction de la vitesse V, tel que sin α = a°V (a étant la vitesse locale du son) …   Encyclopédie Universelle

  • Mach wave — In fluid dynamics, a Mach wave is a pressure wave traveling with the speed of sound caused by a slight change of pressure added to a compressible flow. These weak waves can combine in supersonic flow to become a shock wave if sufficient Mach… …   Wikipedia

  • Angle — An gle ([a^][ng] g l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. agky los bent, crooked, angular, a gkos a bend or hollow, AS. angel hook, fish hook, G. angel, and F. anchor.] 1. The inclosed space near the point where two… …   The Collaborative International Dictionary of English

  • Angle bar — Angle An gle ([a^][ng] g l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. agky los bent, crooked, angular, a gkos a bend or hollow, AS. angel hook, fish hook, G. angel, and F. anchor.] 1. The inclosed space near the point where …   The Collaborative International Dictionary of English

  • Angle bead — Angle An gle ([a^][ng] g l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. agky los bent, crooked, angular, a gkos a bend or hollow, AS. angel hook, fish hook, G. angel, and F. anchor.] 1. The inclosed space near the point where …   The Collaborative International Dictionary of English

  • Angle brace — Angle An gle ([a^][ng] g l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. agky los bent, crooked, angular, a gkos a bend or hollow, AS. angel hook, fish hook, G. angel, and F. anchor.] 1. The inclosed space near the point where …   The Collaborative International Dictionary of English

  • Angle iron — Angle An gle ([a^][ng] g l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. agky los bent, crooked, angular, a gkos a bend or hollow, AS. angel hook, fish hook, G. angel, and F. anchor.] 1. The inclosed space near the point where …   The Collaborative International Dictionary of English

  • Angle leaf — Angle An gle ([a^][ng] g l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. agky los bent, crooked, angular, a gkos a bend or hollow, AS. angel hook, fish hook, G. angel, and F. anchor.] 1. The inclosed space near the point where …   The Collaborative International Dictionary of English

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