An Evaluation of the Heat Pulse Anemometer for Velocity Measurement in Inhomogeneous Turbulent Flow

An Evaluation of the Heat Pulse Anemometer for Velocity Measurement in Inhomogeneous Turbulent Flow

A velocity measuring probe that creates a train of heat pulses at one point in the flow and detects their arrival at a sensing wire a short distance downstream has been developed for the measurement of turbulent flows of unknown composition. In such a turbulent flow the detected pulses are highly di...

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Veröffentlicht in:Review of scientific instruments 1973-02, Vol.44 (2), p.141-148
1. Verfasser: Tombach, Ivar H.
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creator Tombach, Ivar H.
description A velocity measuring probe that creates a train of heat pulses at one point in the flow and detects their arrival at a sensing wire a short distance downstream has been developed for the measurement of turbulent flows of unknown composition. In such a turbulent flow the detected pulses are highly disturbed, but reconstruction of a mean pulse, by digital computer, from several hundred pulses enables calculation of a mean velocity and a velocity fluctuation level. To illustrate the application of this technique, velocity profiles were measured in inhomogeneous turbulent jets over a wide range of jet ambient density ratios.
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title An Evaluation of the Heat Pulse Anemometer for Velocity Measurement in Inhomogeneous Turbulent Flow
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