Rotating-arm method for low speed calibration of hot-wire probes in water applications
Measurement: Journal of the International Measurement Confederation, vol.145, pp.453-459, 2019 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 145
- Publication Date: 2019
- Doi Number: 10.1016/j.measurement.2019.04.084
- Journal Name: Measurement: Journal of the International Measurement Confederation
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.453-459
- Keywords: Hot-wire probes, Low speed calibration, Rotating arm, Rotating-disk flow, Three-dimensional boundary layers
- Bilecik Şeyh Edebali University Affiliated: Yes
Abstract
© 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.