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undisturbed Mach number

См. также в других словарях:

  • число Маха полета — (M∞) число Маха Безразмерный параметр, равный отношению скорости полета к скорости звука в невозмущенной среде, . Примечание Число Маха характеризует влияние сжимаемости среды и режим обтекания (дозвуковой, трансзвуковой, сверхзвуковой,… …   Справочник технического переводчика

  • Prandtl-Meyer expansion fan — A Prandtl Meyer expansion fan is a centered expansion process, which turns a supersonic flow around a convex corner. The fan consists of infinite number of Mach waves, diverging from a sharp corner. In case of a smooth corner, these waves can be… …   Wikipedia

  • Pitot-static system — A pitot static system is a system of pressure sensitive instruments that is most often used in aviation to determine an aircraft s airspeed, Mach number, altitude, and altitude trend. A pitot static system generally consists of a pitot tube, a… …   Wikipedia

  • fluid mechanics — an applied science dealing with the basic principles of gaseous and liquid matter. Cf. fluid dynamics. [1940 45] * * * Study of the effects of forces and energy on liquids and gases. One branch of the field, hydrostatics, deals with fluids at… …   Universalium

  • Potential flow — streamlines around a NACA 0012 airfoil at 11° angle of attack, with upper and lower streamtubes identified. In fluid dynamics, potential flow describes the velocity field as the gradient of a scalar function: the velocity potential. As a result,… …   Wikipedia

  • Ecclesiasticus (Sirach) —     Ecclesiasticus     † Catholic Encyclopedia ► Ecclesiasticus     (Abbrev. Ecclus.; also known as the Book of Sirach.)     The longest of the deuterocanonical books of the Bible, and the last of the Sapiential writings in the Vulgate of the Old …   Catholic encyclopedia

  • Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

  • Europe, history of — Introduction       history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …   Universalium

  • Fourth generation jet fighter — Lockheed Martin F 16. Dassault Mirage …   Wikipedia

  • History of the Jews —     History of the Jews     † Catholic Encyclopedia ► History of the Jews     (Yehúd m; Ioudaismos).     Of the two terms, Jews and Judaism, the former denotes usually the Israelites or descendants of Jacob (Israel) in contrast to Gentile races;… …   Catholic encyclopedia

  • Mean free path — In physics, the mean free path is the average distance covered by a moving particle (such as an atom, a molecule, a photon) between successive impacts (collisions) [1] which modify its direction or energy or other particle properties. Contents 1… …   Wikipedia

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