Eddy viscosity and velocity distribution in turbulent pipe flow revisited

✍ Scribed by Ravindra Datta

• Publisher: American Institute of Chemical Engineers
• Year: 1993
• Tongue: English
• Weight: 417 KB
• Volume: 39
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690390703

✦ Synopsis

An algebraic expression involving three universal constants is proposed for the eddy momentum diffusivity in fully developed turbulent pipe flow that adequately simulates its variation throughout the pipe cross-section. The model permits analytical integration to provide a single universal correlation that, unlike other available expressions, smoothly and accurately describes the entire turbulent velocity distribution from the inner region in the immediate vicinity of the wall all the way to the core region near the pipe axis and compares well with the existing correlations and experimental data. Accurate values of the maximum velocity and otherflow variables of engineering interest can also be calculated from the velocity profile expression.