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research-article

Discharge Coefficients for Circular Side Outlets

[+] Author and Article Information
Laszlo Czetany

Budapest University of Technology and Economics, Faculty of Mechanical Engineering, Department of Building Services and Process Engineering, Műegyetem rkp. 3., Budapest 1111, Hungary
czetanyla@gmail.com

Peter Lang

Budapest University of Technology and Economics, Faculty of Mechanical Engineering, Department of Building Services and Process Engineering, Műegyetem rkp. 3., Budapest 1111, Hungary
lang@mail.bme.hu

1Corresponding author.

ASME doi:10.1115/1.4039117 History: Received March 29, 2017; Revised December 20, 2017

Abstract

Fluid distributors are widely used in various industrial and ventilation applications. For the appropriate design of such distributors, the discharge coefficient has to be known to predict the energy and fluid distribution performance. Despite the vast amount of experimental data published, no generally applicable equations are available. Therefore, a new equation is presented for sharp edged circular side outlets, which can be widely used for calculating the discharge coefficient. The equation is developed by regression with non-linear least squares combined with genetic algorithm on experimental data available in the literature. The equation covers a wider range than the others presented in the literature.

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