Torsional current-meter for channels

Stefan Zarea, Luis Rojas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The main objective of this paper is to present the results of the experimental investigation of a Zarea-type torsional velocity-meter. For this, a torsional meter was designed, built and tested in the laboratory. The current meter consists of an axial rotor with blades fixed to a shaft which is in turn fixed to a rigid hub. The force of the water flow produces a torque which deforms the shaft. The current meter has been statically calibrated, thereby establishing the variational curve of the torsion angle as a function of the applied torque. A laboratory facility has been constructed in which tests were run for water speeds of up 3 m/s. The torque measurements were taken by using strain gauges. The methodology and the equipment used for the experimental evaluation are shown. Additionally illustrated are the calibration curves, the analysis of obtained results, some advantages and disadvantages, and the range of application of the torsional current-meter are all discussed.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
Editors Anon
PublisherASME
Volume5
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 ASME Fluids Engineering Division Summer Meeting, FEDSM'97. Part 16 (of 24) - Vancouver, Can
Duration: Jun 22 1997Jun 26 1997

Other

OtherProceedings of the 1997 ASME Fluids Engineering Division Summer Meeting, FEDSM'97. Part 16 (of 24)
CityVancouver, Can
Period6/22/976/26/97

Fingerprint

Torque
Torque measurement
Strain gages
Torsional stress
Turbomachine blades
Water
Rotors
Calibration

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Zarea, S., & Rojas, L. (1997). Torsional current-meter for channels. In Anon (Ed.), American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED (Vol. 5). ASME.

Torsional current-meter for channels. / Zarea, Stefan; Rojas, Luis.

American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. ed. / Anon. Vol. 5 ASME, 1997.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zarea, S & Rojas, L 1997, Torsional current-meter for channels. in Anon (ed.), American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. vol. 5, ASME, Proceedings of the 1997 ASME Fluids Engineering Division Summer Meeting, FEDSM'97. Part 16 (of 24), Vancouver, Can, 6/22/97.
Zarea S, Rojas L. Torsional current-meter for channels. In Anon, editor, American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. Vol. 5. ASME. 1997
Zarea, Stefan ; Rojas, Luis. / Torsional current-meter for channels. American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. editor / Anon. Vol. 5 ASME, 1997.
@inproceedings{1b127b93c7684a3fb834fe7db79a2cb5,
title = "Torsional current-meter for channels",
abstract = "The main objective of this paper is to present the results of the experimental investigation of a Zarea-type torsional velocity-meter. For this, a torsional meter was designed, built and tested in the laboratory. The current meter consists of an axial rotor with blades fixed to a shaft which is in turn fixed to a rigid hub. The force of the water flow produces a torque which deforms the shaft. The current meter has been statically calibrated, thereby establishing the variational curve of the torsion angle as a function of the applied torque. A laboratory facility has been constructed in which tests were run for water speeds of up 3 m/s. The torque measurements were taken by using strain gauges. The methodology and the equipment used for the experimental evaluation are shown. Additionally illustrated are the calibration curves, the analysis of obtained results, some advantages and disadvantages, and the range of application of the torsional current-meter are all discussed.",
author = "Stefan Zarea and Luis Rojas",
year = "1997",
language = "English",
volume = "5",
editor = "Anon",
booktitle = "American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED",
publisher = "ASME",

}

TY - GEN

T1 - Torsional current-meter for channels

AU - Zarea, Stefan

AU - Rojas, Luis

PY - 1997

Y1 - 1997

N2 - The main objective of this paper is to present the results of the experimental investigation of a Zarea-type torsional velocity-meter. For this, a torsional meter was designed, built and tested in the laboratory. The current meter consists of an axial rotor with blades fixed to a shaft which is in turn fixed to a rigid hub. The force of the water flow produces a torque which deforms the shaft. The current meter has been statically calibrated, thereby establishing the variational curve of the torsion angle as a function of the applied torque. A laboratory facility has been constructed in which tests were run for water speeds of up 3 m/s. The torque measurements were taken by using strain gauges. The methodology and the equipment used for the experimental evaluation are shown. Additionally illustrated are the calibration curves, the analysis of obtained results, some advantages and disadvantages, and the range of application of the torsional current-meter are all discussed.

AB - The main objective of this paper is to present the results of the experimental investigation of a Zarea-type torsional velocity-meter. For this, a torsional meter was designed, built and tested in the laboratory. The current meter consists of an axial rotor with blades fixed to a shaft which is in turn fixed to a rigid hub. The force of the water flow produces a torque which deforms the shaft. The current meter has been statically calibrated, thereby establishing the variational curve of the torsion angle as a function of the applied torque. A laboratory facility has been constructed in which tests were run for water speeds of up 3 m/s. The torque measurements were taken by using strain gauges. The methodology and the equipment used for the experimental evaluation are shown. Additionally illustrated are the calibration curves, the analysis of obtained results, some advantages and disadvantages, and the range of application of the torsional current-meter are all discussed.

UR - http://www.scopus.com/inward/record.url?scp=0030717984&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030717984&partnerID=8YFLogxK

M3 - Conference contribution

VL - 5

BT - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED

A2 - Anon, null

PB - ASME

ER -