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A hot-wire method for high-intensity turbulent flowsA measuring technique for determing instantaneous, three-dimensional velocity vectors in highly turbulent flows by means of a 4-sensor hot-wire probe is described. As is well known, the hot-wire signal received in reversing flows cannot uniquely be interpreted. This difficulty is circumvented by tracking the thermal wake of a heated wire. Whenever the approximate flow direction is indicated by a temperature-sensitive wake detector, all components of the instantaneous velocity vector are evaluated by means of a digital data reduction method. Uniqueness of the solution derived from the triple-hot-wire response equations is examined. A first application of the proposed measuring technique in the recirculating flow downstream of a backward-facing step is described.
Document ID
19840042446
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mueller, U. R.
(Aachen Rheinisch-Westfaelische Technische Hochschule, Aachen, Germany)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Subject Category
Instrumentation And Photography
Accession Number
84A25233
Distribution Limits
Public
Copyright
Other

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