Abstract
An efficient numerical model for turbulent friction has been developed for smooth-walled pipe flow. The aim was to develop a new approach to the numerical modelling, eliminating some important approximations and sources of error, such that the method can be applied reliably under a wide range of conditions. A simple two-region model of effective viscosity is used. For short timescales the turbulence level and effective viscosity distribution are ‘frozen’ in time. The velocity profile is determined numerically for a range of frequencies and viscosity distributions, and this is used to determine the frequency-dependent friction. This is then approximated using simple weighing functions.
| Original language | English |
|---|---|
| Pages (from-to) | 1601-1615 |
| Number of pages | 15 |
| Journal | Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science |
| Volume | 225 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 2011 |
Fingerprint
Dive into the research topics of 'Numerical modelling of unsteady turbulent flow in smooth-walled pipes'. Together they form a unique fingerprint.Cite this
- APA
- Standard
- Harvard
- Vancouver
- Author
- BIBTEX
- RIS