Review on the sensed temperature in cold-wire and hot-wire anemometry
2010 (English)Report (Other academic)
Instantaneous velocity and temperature measurements by means of hot-wire and coldwires have become a standard technique used in almost every fluid dynamic research laboratory. Nonetheless, when it comes to compressible flows in applied fields, there seems to remain a need for clarification on which temperature is actually measured by a cold-wire and which temperature a hot-wire senses as its fluid temperature. The present paper reviews the view present in the literature and presents additional experimental evidence, that it is indeed the recovery temperature that is measured by a cold-wire and that this is also the temperature needed to compensate hot-wire readings in nonisothermal compressible flows
Place, publisher, year, edition, pages
2010. , 11 p.
hot-wire anemometry, cold-wire anemometry, recovery temperature, temperature
IdentifiersURN: urn:nbn:se:kth:diva-26343OAI: oai:DiVA.org:kth-26343DiVA: diva2:371877
QC 201012082010-11-232010-11-232012-05-10Bibliographically approved