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Velocity profiles in ducts with rectangular cross sections

โœ Scribed by D.B. Holmes; J.R. Vermeulen

Publisher
Elsevier Science
Year
1968
Tongue
English
Weight
413 KB
Volume
23
Category
Article
ISSN
0009-2509

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โœฆ Synopsis

A phosphorescence method is described to visualize flow patterns in the laminar flow of a viscous liquid. With the aid of this method velocity distributions for Newtonian fluids were determined in rectangular ducts of various height-breadth ratios. The experimental results are shown to agree with the theoretically calculated velocity profiles.

Finally the pressure-drop/volumetric-flow rate characteristic was directly measured and, in addition, was determined from the measured velocity 'gradients at the walls. These results are also in good agreement with the theoretically obtained relations.

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