Measurement of velocity in rotational flows using ultrasonic anemometry: the flowmeter
نویسندگان
چکیده
منابع مشابه
Measurement of velocity in rotational flows using ultrasonic anemometry: the flowmeter
In this paper a previously developed theoretical model of the measurement process performed by a transittime ultrasonic anemometer is applied to a fluid flowing through a circular section pipe. This model considers the influence of the shift of the acoustic pulse trajectory from straight propagation due to the flow on the measured speed. The aim of this work is to estimate the errors induced in...
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In their recent topical review, Nabavi and Siddiqui (Meas. Sci. Technol. 2010 21 042002) recommended the use of hot-wire anemometry for velocity measurements in pulsating flows, especially at high frequency. This recommendation is misleading. The procedures invoked by these authors are valid only for small-amplitude fluctuations, which are of little interest for pulsating flows. When large-ampl...
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An unconditionally stable rotational velocity-correction scheme for incompressible flows
We present an unconditionally stable splitting scheme for incompressible Navier-Stokes equations based on the rotational velocity-correction formulation. The main advantages of the scheme are: (i) it allows the use of time step sizes considerably larger than the widely-used semi-implicit type schemes: the time step size is only constrained by accuracy; (ii) it does not require the velocity and ...
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ژورنال
عنوان ژورنال: Experiments in Fluids
سال: 2007
ISSN: 0723-4864,1432-1114
DOI: 10.1007/s00348-007-0299-x