Leray-alpha model and transition to turbulence in rough-wall boundary layers
| dc.creator | Cheskidov, Alexey | |
| dc.creator | Ma, Diana | |
| dc.date | 2006-11-01 | |
| dc.date | 2007-07-03 | |
| dc.date.accessioned | 2026-07-07T08:13:39Z | |
| dc.date.available | 2026-07-07T08:13:39Z | |
| dc.description | In the present study, we use a fifth-order ordinary differential equation, a generalization of the Blasius equation derived from the Leray-alpha model, to examine the transition to turbulence in rough-wall boundary-layer flows. This equation, combined with a weaker formulation of the von Karman log law modified to include the effects of surface roughness, provides a family of turbulent velocity profiles with two free parameters: the momentum thickness based Reynolds number and the roughness function. As a result, a skin-friction correlation is obtained and predictions of the transitional Reynolds numbers and maximal skin-friction values are made based on the roughness function. | |
| dc.description | 4 figures, revised | |
| dc.identifier | https://arxiv.org/abs/physics/0611001 | |
| dc.identifier | http://arxiv.org/abs/physics/0611001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/132840 | |
| dc.subject | Fluid Dynamics | |
| dc.title | Leray-alpha model and transition to turbulence in rough-wall boundary layers | |
| dc.type | text |