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Adjusted average correction factors for sprinkler laterals

Adjusted average correction factors for sprinkler laterals
Adjusted average correction factors for sprinkler laterals
This paper is the fourth in a series on friction factors for sprinkler laterals. The widely used friction correction factor F was developed by Christiansen for the hydraulic analysis of sprinkler laterals. A significant modification to this factor was the adjusted friction correction factor Fa. The adjusted friction correction factor can be used when the first sprinkler is a fraction of a full spacing from the lateral inlet.

To design laterals with outlets and outflow at the downstream end, friction correction factor G was developed with the corresponding adjusted friction correction factor Ga. To calculate the average pressure head along a lateral, the average correction factors FAVG and GAVG were developed. These average correction factors can be used where friction correction factors F and G are used to analyze a lateral. This paper introduces two final adjusted average correction factors FaAVG and GaAVG, which can be used to determine the average pressure head in laterals analyzed using Fa or Ga. Use of these factors is demonstrated in an example.
0733-9437
296-303
Anwar, Arif A.
e9a57bb7-5225-45e6-9a69-2396a6e4fd31
Anwar, Arif A.
e9a57bb7-5225-45e6-9a69-2396a6e4fd31

Anwar, Arif A. (2000) Adjusted average correction factors for sprinkler laterals. Journal of Irrigation and Drainage Engineering, ASCE, 126 (5), 296-303. (doi:10.1061/(ASCE)0733-9437(2000)126:5(296)).

Record type: Article

Abstract

This paper is the fourth in a series on friction factors for sprinkler laterals. The widely used friction correction factor F was developed by Christiansen for the hydraulic analysis of sprinkler laterals. A significant modification to this factor was the adjusted friction correction factor Fa. The adjusted friction correction factor can be used when the first sprinkler is a fraction of a full spacing from the lateral inlet.

To design laterals with outlets and outflow at the downstream end, friction correction factor G was developed with the corresponding adjusted friction correction factor Ga. To calculate the average pressure head along a lateral, the average correction factors FAVG and GAVG were developed. These average correction factors can be used where friction correction factors F and G are used to analyze a lateral. This paper introduces two final adjusted average correction factors FaAVG and GaAVG, which can be used to determine the average pressure head in laterals analyzed using Fa or Ga. Use of these factors is demonstrated in an example.

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More information

Published date: October 2000
Additional Information: Technical paper

Identifiers

Local EPrints ID: 74701
URI: http://eprints.soton.ac.uk/id/eprint/74701
ISSN: 0733-9437
PURE UUID: b18249e5-c559-4140-b2b4-54aaada8a340
ORCID for Arif A. Anwar: ORCID iD orcid.org/0000-0002-3071-3197

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:40

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