. "Druckverlustbeiwert"@de . . . "In a nozzle or other constriction, the discharge coefficient (also known as coefficient of discharge or efflux coefficient) is the ratio of the actual discharge to the ideal discharge, i.e., the ratio of the mass flow rate at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid from the same initial conditions to the same exit pressures. Mathematically the discharge coefficient may be related to the mass flow rate of a fluid through a straight tube of constant cross-sectional area through the following: Where: , discharge coefficient through the constriction (dimensionless)., mass flow rate of fluid through constriction (mass per time)., density of fluid (mass per volume)., volumetric flow rate of fluid through constriction (volume per time)., cross-sectional area of flow constriction (area). , velocity of fluid through constriction (length per time)., pressure drop across constriction (force per area). This parameter is useful for determining the irrecoverable losses associated with a certain piece of equipment (constriction) in a fluid system, or the \"resistance\" that piece of equipment imposes upon the flow. This flow resistance, often expressed as a dimensionless parameter, , is related to the discharge coefficient through the equation: which may be obtained by substituting in the aforementioned equation with the resistance, , multiplied by the dynamic pressure of the fluid, ."@en . . "\u0645\u0639\u0627\u0645\u0644 \u062A\u0635\u0631\u064A\u0641"@ar . "25584664"^^ . "Der Druckverlustbeiwert, Druckverlustkoeffizient oder auch Widerstandsbeiwert (\u00FCbliches Formelzeichen (Zeta)) ist in der Str\u00F6mungslehre ein dimensionsloses Ma\u00DF f\u00FCr den Druckverlust in einem durchstr\u00F6mten Bauteil, wie einer Rohrleitung oder Armatur. Das hei\u00DFt, der Druckverlustbeiwert sagt etwas dar\u00FCber aus, welcher Druckunterschied zwischen Zu- und Abstr\u00F6mung vorliegen muss, um einen bestimmten Durchfluss durch das Bauteil aufrechtzuerhalten. Der Druckverlustbeiwert gilt immer f\u00FCr eine bestimmte geometrische Form und ist allgemein von der Reynolds-Zahl und gegebenenfalls von der Oberfl\u00E4chenrauhigkeit abh\u00E4ngig."@de . . "Discharge coefficient"@en . . 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"In a nozzle or other constriction, the discharge coefficient (also known as coefficient of discharge or efflux coefficient) is the ratio of the actual discharge to the ideal discharge, i.e., the ratio of the mass flow rate at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid from the same initial conditions to the same exit pressures. Mathematically the discharge coefficient may be related to the mass flow rate of a fluid through a straight tube of constant cross-sectional area through the following: Where:"@en . . . . . . . "Der Druckverlustbeiwert, Druckverlustkoeffizient oder auch Widerstandsbeiwert (\u00FCbliches Formelzeichen (Zeta)) ist in der Str\u00F6mungslehre ein dimensionsloses Ma\u00DF f\u00FCr den Druckverlust in einem durchstr\u00F6mten Bauteil, wie einer Rohrleitung oder Armatur. Das hei\u00DFt, der Druckverlustbeiwert sagt etwas dar\u00FCber aus, welcher Druckunterschied zwischen Zu- und Abstr\u00F6mung vorliegen muss, um einen bestimmten Durchfluss durch das Bauteil aufrechtzuerhalten. Der Druckverlustbeiwert gilt immer f\u00FCr eine bestimmte geometrische Form und ist allgemein von der Reynolds-Zahl und gegebenenfalls von der Oberfl\u00E4chenrauhigkeit abh\u00E4ngig. Der hier beschriebene Widerstandsbeiwert f\u00FCr durchstr\u00F6mte Bauteile entspricht dem Druckbeiwert zwischen Eingangs- und Ausgangsdruck und ist das Analogon des Widerstandsbeiwertes (auch Str\u00F6mungswiderstandskoeffizient) f\u00FCr umstr\u00F6mte K\u00F6rper."@de . "1048494067"^^ . . . . . . "3777"^^ . . . .