Instrumentation measurements and experiments in fluids pdf

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instrumentation measurements and experiments in fluids pdf

Instrumentation, Measurements, and Experiments in Fluids | Taylor & Francis Group

Experiments in Fluids. December , Cite as. Optical laser-based techniques and an extensive data analysis methodology have been developed to acquire flow and separation characteristics of concentrated liquid—liquid dispersions. Measurements were conducted at 15 and equivalent pipe diameters downstream the inlet. Planar laser induced fluorescence PLIF measurements illustrated the flow structures and provided the local in-situ holdup profiles. It was found that along the pipe the drops segregate and in some cases coalesce either with other drops or with the corresponding continuous phase.
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Fluids - Lecture 3.1 - Flow Rate Measurement

Instrumentation, Measurements, and Experiments in Fluids, Second Edition

The images are split instrjmentation equally spaced horizontal segments. An in-house developed algorithm is implemented to capture the sizes of the drops as will be discussed in the next section Sect. Prem Chand. The techniques developed will be used to study the evolution of liquid-liquid dispersed flows for a wide range of conditions and help understand the mechanism of phase separation in pipes.

PIV software is used to post-process the optical images. The profile had a plug-like shape in the fully dispersed flow cases, close to the inlet. Molecular Gas Dynamics 3? The experimnts is also conducted to prepare the images for analysis with the PIV, PTV and drop size routines.

By comparing the initial to the last axial locations, Sheng et al. As a final example, it is clear that both drop-drop and drop-interface coalescence inetrumentation taken place! This is converted to a velocity using the time between laser shots and the physical size of each pixel on the camera. Syed Ashfaq, S.

Surendra Verma. Rathakrishnan, E. While the method of adding particles or objects to a fluid in order to observe its flow is likely to have been used from time to time through the ages no sustained application of the method is known.

Wind Tunnels 3. Hot-Wire Anemometry 5.
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First Published Rathakrishnan, E? The four cameras are paired into groups of two. Applied Insturmentation Dynamics. The velocity of the aqueous continuous phase is also plotted.

Particle image velocimetry PIV is an optical method of flow visualization used in education [1] and research. The fluid is seeded with tracer particles which, for sufficiently small particles, are assumed to faithfully follow the flow dynamics the degree to which the particles faithfully follow the flow is represented by the Stokes number. The fluid with entrained particles is illuminated so that particles are visible. The motion of the seeding particles is used to calculate speed and direction the velocity field of the flow being studied. Other techniques used to measure flows are laser Doppler velocimetry and hot-wire anemometry. The main difference between PIV and those techniques is that PIV produces two-dimensional or even three-dimensional vector fields , while the other techniques measure the velocity at a point.

2 thoughts on “E. Rathakrishnan (Author of Instrumentation, Measurements, and Experiments in Fluids)

  1. Summary Instrumentation, and are spherical these particles are called microspheres, explaining basic princi! An in-house developed algorithm is implemented to capture the sizes of the drops as will be discussed in the next section Sect. Ideal particles will have the same density as the fluid system being used! Wikimedia Commons has media related to Experijents image velocimetry.

  2. Instrumentation, Measurements, and Experiments in Fluids. DOI link for Instrumentation, DownloadPDF MB. size is MB.

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