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Energies 2017, 10(6), 788; doi:10.3390/en10060788

Pressure Losses in Multiple-Elbow Paths and in V-Bends of Hydraulic Manifolds

Engineering Department Enzo Ferrari, via P. Vivarelli 10, 41125 Modena, Italy
Author to whom correspondence should be addressed.
Academic Editor: Andrea Vacca
Received: 30 March 2017 / Revised: 29 May 2017 / Accepted: 3 June 2017 / Published: 7 June 2017
(This article belongs to the Special Issue Energy Efficiency and Controllability of Fluid Power Systems)


Hydraulic manifolds are used to realize compact circuit layouts, but may introduce high pressure losses in the system because their design is usually oriented to achieving minimum size and weight more than reducing the pressure losses. The purpose of this work is to obtain the pressure losses when the internal connections within the manifold are creating complex paths for the fluid and the total loss cannot be calculated simply as the sum of the single losses. To perform the analysis both Computational Fluid Dynamic (CFD) analysis and experimental tests have been executed. After the comparison between numerical and experimental results, it was possible to assess that the numerical analysis developed in this work is able to depict the correct trends of the pressure losses also when complex fluid path are realized in the manifold. Successively, the numerical analysis was used to calculate the pressure loss for inclined connections of channels (or V-bends), a solution that is sometimes adopted in manifolds to meet the design requirements aimed towards the minimum room-minimum weight objective. View Full-Text
Keywords: hydraulic manifold; pressure losses; Computational Fluid Dynamic (CFD) analysis; experimental analysis hydraulic manifold; pressure losses; Computational Fluid Dynamic (CFD) analysis; experimental analysis

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zardin, B.; Cillo, G.; Borghi, M.; D’Adamo, A.; Fontanesi, S. Pressure Losses in Multiple-Elbow Paths and in V-Bends of Hydraulic Manifolds. Energies 2017, 10, 788.

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