János Vad, Eszter Lukács

Fluid Mechanics Measurements


Examples for measurement configurations and devices

Such simple configuration (Figure 2.14) can be applied if the velocity distribution is to be measured in free jets (e.g. for optimisation the shape of air release units in building service engineering applications). The free jet under consideration is surrounded by motionless fluid of constant static pressure. Although a free jet entrains fluid from its surroundings, and therefore, the streamlines are divergent, the streamlines can be assumed to be of negligible curvature during velocity measurements. Therefore, the static pressure in the jet is assumed to be equal to the ambient pressure p0 (conf. Eq. (2.4)). p0 is used also as reference pressure pref apparent on the manometer, given that one port of the manometer is left open toward the atmosphere. The other port is connected to the Pitot probe measuring pt. Therefore, the pressure difference read from the manometer is pdyn.

Fluid Mechanics Measurements

Tartalomjegyzék


Kiadó: Akadémiai Kiadó

Online megjelenés éve: 2020

ISBN: 978 963 454 484 5

This lecture note aims at providing basic information on nowadays applied fluid flow measurement techniques, in terms of their operating principle, layouts, application areas, advantages, and limitations. As such, it intends to give an aid in decision-making when selecting instrumentation for the solution of various practical flow measurement problems, also providing hints for the actual realisation of the measurements.

Hivatkozás: https://mersz.hu/vad-lukacs-fluid-mechanics-measurements//

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