Pipe Flow and Wall Turbulence Using a Modified Navier-Stokes Equation
Creators
- 1. Department of Informatics and Geoinformatics, Fakulta Zivotniho Prostredi, FZP, University of J.E. Purkyne, Kralova Vysina 7, 40096 Usti n.L. (Czech Republic)
- 2. Department of Electrical Engineering, Columbia University, New York City (United States)
Description
We use a derived incompressible modified Navier-Stokes equation to model pipe flow and wall turbulence. We reproduce the observed flattened paraboloid velocity profiles of turbulence that cannot be obtained directly using standard incompressible Navier-Stokes equation. The solutions found are in harmony with multi-valued velocity fields as a definition of turbulence. Repeating the procedure for the flow of turbulent fluid between two parallel flat plates we find similar flattened velocity profiles. We extend the analysis to the turbulent flow along a single wall and compare the results with experimental data and the established controversial von Karman logarithmic law of the wall. (electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics)
Availability note (English)
Available from http://dx.doi.org/10.1088/0253-6102/57/3/22Additional details
Identifiers
Publishing Information
- Journal Title
- Communications in Theoretical Physics
- Journal Volume
- 57
- Journal Issue
- 3
- Journal Page Range
- p. 477-481
- ISSN
- 0253-6102
INIS
- Country of Publication
- China
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 44004013
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- COMPARATIVE EVALUATIONS; ELECTROMAGNETISM; MATHEMATICAL SOLUTIONS; NAVIER-STOKES EQUATIONS; SIMULATION; TURBULENCE
- Descriptors DEC
- DIFFERENTIAL EQUATIONS; EQUATIONS; EVALUATION; MAGNETISM; PARTIAL DIFFERENTIAL EQUATIONS