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Friction Factors for Pipe Flow

Moody, Lewis F.·1944·Journal of Fluids Engineering

Abstract

The object of this paper is to furnish the engineer with a simple means of estimating the friction factors to be used in computing the loss of head in clean new pipes and in closed conduits running full with steady flow. The modern developments in the application of theoretical hydrodynamics to the fluid-friction problem are impressive and scattered through an extensive literature. This paper is not intended as a critical survey of this wide field. For a concise review, Professor Bakhmeteff’s (1) small book on the mechanics of fluid flow is an excellent reference. Prandtl and Tietjens (2) and Rouse (3) have also made notable contributions to the subject. The author does not claim to offer anything particularly new or original, his aim merely being to embody the now accepted conclusions in convenient form for engineering use.

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Metadata

Authors
Moody, L. F.
Venue
Journal of Fluids Engineering
Published
1944-11-01
Volume
66
Issue
8
Pages
671-678
ISSN
0097-6822 (ISSN-L)
OpenAlex
W3135085526
Cited by
1,781
References
0
FWCI
14.88
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Friction Factors for Pipe Flow. https://app.cochat.ai/papers/10.1115/1.4018140
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Moody, L. F. (1944). Friction Factors for Pipe Flow. Journal of Fluids Engineering. https://doi.org/10.1115/1.4018140

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.