The correction of hot-wire readings for proximity to a solid boundary
- 1 January 1962
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Fluid Mechanics
- Vol. 12 (3) , 388-396
- https://doi.org/10.1017/s0022112062000282
Abstract
When using a hot wire for velocity measurements close to a solid boundary, errors may be introduced if the effect of the boundary on the rate of heat loss from the wire is ignored. An experimental determination of the effect is described, in which a hot wire was mounted at various distances from a metal surface forming one wall of a two-dimensional channel. The rate of heat loss was determined electrically, and the air velocity at the wire found from the known laminar velocity profile. The application of the results to turbulent flows is discussed briefly.Keywords
This publication has 3 references indexed in Scilit:
- Two-dimensional convection from heated wires at low Reynolds numbersJournal of Fluid Mechanics, 1959
- On the Convection of Heat from a Wire moving through Air close to a Cooling SurfaceProceedings of the Physical Society. Section B, 1956
- XII. On the convection of heat from small cylinders in a stream of fluid: Determination of the convection constants of small platinum wires with applications to hot-wire anemometryPhilosophical Transactions of the Royal Society A, 1914