Numerical simulation of transient response of heat transfer from a hot-wire anemometer transducer

Bullock K.J., Ledwich M.A. and Lai J.C.S. (1985) Numerical simulation of transient response of heat transfer from a hot-wire anemometer transducer. International Journal of Heat and Fluid Flow, 6 1: 57-65. doi:10.1016/0142-727X(85)90034-7


Author Bullock K.J.
Ledwich M.A.
Lai J.C.S.
Title Numerical simulation of transient response of heat transfer from a hot-wire anemometer transducer
Journal name International Journal of Heat and Fluid Flow   Check publisher's open access policy
ISSN 0142-727X
Publication date 1985-01-01
Sub-type Article (original research)
DOI 10.1016/0142-727X(85)90034-7
Volume 6
Issue 1
Start page 57
End page 65
Total pages 9
Subject 1507 Transportation and Freight Services
2210 Mechanical Engineering
Abstract Both the steady state and transient response of the Nusselt number to variations in Reynolds number over the range 1 to 40 are given by the analysis of a time dependent numerical simulation of a hot-wire anemometer transducer described here. Transducer response can be modelled suitably by considering the system to consist of a phase independent non-linearity followed by a non-linear differential equation whose coefficient (approximate time constant) is Nusselt number dependent. Errors associated with slip flow and free convection constrain the minimum size of a hot-wire which may be used in calibration anemometry while the wire thermal inertia and, to a lesser extent, the response of the Nusselt number to Reynolds number limits the use of large diameter wires. Thus, although the tendency has been to use finer and finer wires, the basic fluid mechanics suggests that a compromise in the choice of the wire diameter is appropriate. Thus development of even more sophisticated hot-wire anemometer control systems as well as accurate calibration techniques for measurement in flows containing large amplitude high frequency turbulence is required.
Keyword flow measurement
heat transfer
hot wire anemometry
thermal boundary layer
transient response
turbulence
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 2 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 30 Aug 2016, 13:15:24 EST by System User