Pressure Losses in Hydraulic Manifolds

Barbara Zardin, Giovanni Cillo, Carlo Alberto Rinaldini, Enrico Mattarelli and Massimo Borghi
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Barbara Zardin: Engineering Department Enzo Ferrari, via P. Vivarelli 10, 41125 Modena, Italy
Giovanni Cillo: Engineering Department Enzo Ferrari, via P. Vivarelli 10, 41125 Modena, Italy
Carlo Alberto Rinaldini: Engineering Department Enzo Ferrari, via P. Vivarelli 10, 41125 Modena, Italy
Enrico Mattarelli: Engineering Department Enzo Ferrari, via P. Vivarelli 10, 41125 Modena, Italy
Massimo Borghi: Engineering Department Enzo Ferrari, via P. Vivarelli 10, 41125 Modena, Italy

Energies, 2017, vol. 10, issue 3, 1-21

Abstract: Hydraulic manifolds are used to realize compact circuit layout, but may introduce a high pressure drop in the system. Their design is in fact oriented more toward achieving minimum size and weight than to reducing pressure losses. This work studies the pressure losses in hydraulic manifolds using different methods: Computational Fluid Dynamic (CFD) analysis; semi-empirical formulation derived from the scientific literature, when available; and experimental characterization. The purpose is to obtain the pressure losses when the channels’ connections within the manifold are not ascribable to the few classic cases studied in the literature, in particular for 90° bends (elbows) with expansion/contraction and offset intersection of channels. Moreover, since CFD analysis is used to predict pressure losses, general considerations of the manifold design may be outlined and this will help the design process in the optimization of flow passages. The main results obtained show how CFD analysis overestimates the experimental results; nevertheless, the numerical analysis represents the correct trends of the pressure losses.

Keywords: Hydraulic Manifold; Pressure Drop; CFD analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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