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Implementing unsteady friction in pressure-time measurements
Pöyry SwedPower AB.
Gauldal Consult AS.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-7599-0895
Norwegian University of Science and Technology (NTNU), Trondheim.
2012 (English)Conference paper, Oral presentation only (Refereed)
Abstract [en]

Laboratory measurements using the pressure‐time method showed a velocity or Reynolds number dependent error of the flow estimate. It was suspected that the quasi steady friction formulation of the method was the cause. This was investigated, and it was proved that implementing a model for unsteady friction into the calculations improved the result. This paper presents the process of this investigation, and proposes a new method for treatment of the friction term in the pressure‐time method.

Place, publisher, year, edition, pages
2012.
National Category
Fluid Mechanics and Acoustics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-31283Local ID: 56c13fff-fe2a-458d-9245-e7362710fd7bOAI: oai:DiVA.org:ltu-31283DiVA: diva2:1004516
Conference
International Conference on Hydraulic Efficiency Measurments : 27/06/2012 - 30/06/2012
Note
Godkänd; 2012; 20121217 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

Open Access in DiVA

fulltext(6595 kB)22 downloads
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf