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Hot-Wire Calibration at Low Velocities: Revisiting the Vortex Shedding Method
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0003-3310-0633
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx).ORCID iD: 0000-0001-8127-8124
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx).ORCID iD: 0000-0002-1663-3553
2013 (English)In: Advances in Mechanical Engineering, ISSN 1687-8132, E-ISSN 1687-8140, Vol. 2013, 241726- p.Article in journal (Refereed) Published
Abstract [en]

The necessity to calibrate hot-wire probes against a known velocity causes problems at low velocities, due to the inherent inaccuracy of pressure transducers at low differential pressures. The vortex shedding calibration method is in this respect a recommended technique to obtain calibration data at low velocities, due to its simplicity and accuracy. However, it has mainly been applied in a low and narrow Reynolds number range known as the laminar vortex shedding regime. Here, on the other hand, we propose to utilize the irregular vortex shedding regime and show where the probe needs to be placed with respect to the cylinder in order to obtain unambiguous calibration data.

Place, publisher, year, edition, pages
2013. Vol. 2013, 241726- p.
Keyword [en]
Low-Speed Calibration, Spatial-Resolution Issues, Circular-Cylinders, Aspect Ratio, Anemometers, Flow
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-137496DOI: 10.1155/2013/241726ISI: 000326722100001Scopus ID: 2-s2.0-84888347324OAI: oai:DiVA.org:kth-137496DiVA: diva2:680398
Funder
Swedish Energy Agency
Note

QC 20131217

Available from: 2013-12-18 Created: 2013-12-13 Last updated: 2017-12-06Bibliographically approved

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Sattarzadeh Shirvan, SohrabÖrlü, Ramis

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