Rotating-arm method for low speed calibration of hot-wire probes in water applications

ÖZKAN M.

Measurement: Journal of the International Measurement Confederation, cilt.145, ss.453-459, 2019 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 145
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.measurement.2019.04.084
  • Dergi Adı: Measurement: Journal of the International Measurement Confederation
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.453-459
  • Anahtar Kelimeler: Hot-wire probes, Low speed calibration, Rotating arm, Rotating-disk flow, Three-dimensional boundary layers
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Evet

Özet

© 2019 Elsevier LtdAn instrument for calibration of hot-wire probes at very low velocities in water applications is introduced. The technique is based on moving a hot-wire probe by means of a rotating-arm device in still water. This simple in situ calibration method is principally beneficial for the investigations of three-dimensional boundary layers which are encountered for instance over rotating disks. In addition to this proposed technique, an existing alternative method in which the calibration is performed against a known reference velocity over a flat surface of a rotating disk is conducted. The comparison of both methods show that the rotating-arm technique is superior to that existing alternative flat-surface calibration method.