Turbulent pipe flow: Statistics, Re-dependence, structures and similarities with channel and boundary layer flows
2014 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 506, no 1, 012010- p.Article in journal (Refereed) Published
Direct numerical simulation data of fully developed turbulent pipe flow are extensively compared with those of turbulent channel flow and zero-pressure-gradient boundary layer flow for Re-tau up to 1 000. In the near-wall region, a high degree of similarity is observed in the three flow cases in terms of one-point statistics, probability density functions of the wall-shear stress and pressure, spectra, Reynolds stress budgets and advection velocity of the turbulent structures. This supports the notion that the near-wall region is universal for pipe and channel flow. Probability density functions of the wall shear stress, streamwise turbulence intensities, one-dimensional spanwise/azimuthal spectra of the streamwise velocity and Reynolds-stress budgets are very similar near the wall in the three flow cases, suggesting that the three cauonical wall-bounded flows share wally features. In the wake region, the wean streamwise velocity and Reynolds stress budgets show smile expected differences.
Place, publisher, year, edition, pages
2014. Vol. 506, no 1, 012010- p.
Direct Numerical-Simulation, Fully-Developed Pipe, Reynolds-Numbers
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-147076DOI: 10.1088/1742-6596/506/1/012010ISI: 000336120800010ScopusID: 2-s2.0-84901503122OAI: oai:DiVA.org:kth-147076DiVA: diva2:728993
1st Multiflow Summer Workshop; Madrid; Spain; 10 June 2013 through 12 July 2013
QC 201406252014-06-252014-06-232014-06-25Bibliographically approved