Show simple item record

dc.contributor.authorBrkić, Dejan
dc.contributor.authorPraks, Pavel
dc.date.accessioned2019-01-08T09:43:48Z
dc.date.available2019-01-08T09:43:48Z
dc.date.issued2018
dc.identifier.citationApplied Sciences. 2018, vol. 8, issue 11, art. no. 2036.cs
dc.identifier.issn2076-3417
dc.identifier.urihttp://hdl.handle.net/10084/133495
dc.description.abstractThis paper provides a new unified formula for Newtonian fluids valid for all pipe flow regimes from laminar to fully rough turbulent flow. This includes laminar flow; the unstable sharp jump from laminar to turbulent flow; and all types of turbulent regimes, including the smooth turbulent regime, the partial non-fully developed turbulent regime, and the fully developed rough turbulent regime. The new unified formula follows the inflectional form of curves suggested in Nikuradse's experiment rather than the monotonic shape proposed by Colebrook and White. The composition of the proposed unified formula uses switching functions and interchangeable formulas for the laminar, smooth turbulent, and fully rough turbulent flow regimes. Thus, the formulation presented below represents a coherent hydraulic model suitable for engineering use. This new flow friction model is more flexible than existing literature models and provides smooth and computationally cheap transitions between hydraulic regimes.cs
dc.format.extent2695697 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofseriesApplied Sciencescs
dc.relation.urihttp://doi.org/10.3390/app8112036cs
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectturbulent flowcs
dc.subjectlaminar flowcs
dc.subjectpipescs
dc.subjectfriction factorcs
dc.subjecthydraulicscs
dc.subjectmonotonic roughnesscs
dc.subjectinflectional roughnesscs
dc.subjectsmooth curve contactcs
dc.subjectMoody diagramcs
dc.subjecthydraulic resistancecs
dc.titleUnified Friction Formulation from Laminar to Fully Rough Turbulent Flowcs
dc.typearticlecs
dc.identifier.doi10.3390/app8112036
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume8cs
dc.description.issue11cs
dc.description.firstpageart. no. 2036cs
dc.identifier.wos000451302800026


Files in this item

This item appears in the following Collection(s)

Show simple item record

© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
Except where otherwise noted, this item's license is described as © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.