High accuracy volume flow rate measurement using vortex counting
نویسندگان
چکیده
منابع مشابه
A method for bubble volume measurement under constant flow conditions in gas–liquid two-phase flow
Measuring the volume of a bubble, especially at its detachment, is a basic subject in gas-liquid two-phase flow research. A new indirect method for this measurement under constant flow conditions is presented. An electronic device is designed and constructed based on laser beam intensity. This device calculates the frequency of the bubble formation by measuring the total time of the formation p...
متن کاملHigh Accuracy Calibration of Photon-Counting Detectors
We discuss a practical implementation of a photon-counting detector calibration using correlated photon pairs produced by parametric down-conversion. In this calibration scheme, the detection of a first photon triggers the measurement sequence aimed at detection of a second photon by a detector under test (DUT). We also describe measurements of radiant power with a photon-counting detector, whi...
متن کاملVolume Flow Rate Measurement in Vertical Oil-in-water Pipe Flow Using Electrical Impedance Tomography and a Local Probe
This paper presents the use of a high performance dual-plane electrical impedance tomography (EIT) system and a local dual-sensor conductance probe to measure the vertical upward co-current oil-in-water pipe flows. Experiments were carried on a flow loop with a transparent 2.5 m long, 80 mm inner diameter test section using kerosene and tap water. The flow conditions were predominantly of the d...
متن کاملEffect of measurement duration on accuracy of pulse-counting
In this study, the relation between the measurement duration and accuracy of pulse-counting was quantitatively examined with special reference to low-frequency fluctuations in heart rate variability. The interbeat intervals of 70 healthy male subjects were measured in standing, sitting and supine positions. Pulse rates for various durations were calculated by objective-scoring simulation based ...
متن کاملDirect Numerical Simulation of the Wake Flow Behind a Cylinder Using Random Vortex Method in Medium to High Reynolds Numbers
Direct numerical simulation of turbulent flow behind a cylinder, wake flow, using the random vortex method for an incompressible fluid in two dimensions is presented. In the random vortex method, the primary variable is vorticity of the flow field. After generation on the cylinder wall, it is followed in two fractional time step in a Lagrangian system of coordinates, namely convection and diffu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Flow Measurement and Instrumentation
سال: 2013
ISSN: 0955-5986
DOI: 10.1016/j.flowmeasinst.2013.06.002