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Pressure loss modulus correlation for Delta p across uniformly distributed-loss devices (1994)

Nunz, Gregory J.

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Publication Date: 2011-08-24

Description: A dimensionless group, called a pressure loss modulus (N(sub PL)), is introduced that, in conjunction with an appropriately defined Reynolds number, is of considerable engineering utility in correlating steady-state Delta p vs flow calibration data and subsequently as a predictor, using the same or a different fluid, in uniformly distributed pressure loss devices. It is particularly useful under operation in the transition regime. Applications of this simple bivariate correlation to three diverse devices of particular interest for small liquid rocket engine fluid systems are discussed: large L/D capillary tube restrictors, packed granular catalyst beds, and stacked vortex-loss disk restrictors.

Keywords: FLUID MECHANICS AND HEAT TRANSFER

Type: AIAA Journal (ISSN 0001-1452); 32; 9; p. 1890-1894

Format: text

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