Engineering Mechanics

Proceedings Vol. 25 (2019)

ENGINEERING MECHANICS 2019

Copyright © 2019 Institute of Thermomechanics of the Czech Academy of Sciences, Prague

 

Peszynski K.:
pages 279 - 282, full text

This paper presents the results of research on linear losses in a new ventilation system based on channels with a rounded rectangle cross-section. The friction coefficients of linear pressure losses referred to the unit of the straight length of the duct section ξ_l [1/m] as well as generalized dimensionless friction coefficient of linear pressure losses λ [−] are presented. The main achievement of the paper is the statement that the lambda coefficient λ can replace the coefficients ξ_l for all 79 examined duct cross-sections.

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