Eckhardt, Bruno ; Schneider, Tobias M ; Hof, BjörnIST Austria ; Westerweel, Jerry
Pipe flow is a prominent example among the shear flows that undergo transition to turbulence without mediation by a linear instability of the laminar profile. Experiments on pipe flow, as well as plane Couette and plane Poiseuille flow, show that triggering turbulence depends sensitively on initial conditions, that between the laminar and the turbulent states there exists no intermediate state with simple spatial or temporal characteristics, and that turbulence is not persistent, i.e., it can decay again, if the observation time is long enough. All these features can consistently be explained on the assumption that the turbulent state corresponds to a chaotic saddle in state space. The goal of this review is to explain this concept, summarize the numerical and experimental evidence for pipe flow, and outline the consequences for related flows.
Annual Review of Fluid Mechanics
447 - 468
Eckhardt B, Schneider T, Hof B, Westerweel J. Turbulence transition in pipe flow. Annual Review of Fluid Mechanics. 2007;39:447-468. doi:10.1146/annurev.fluid.39.050905.110308
Eckhardt, B., Schneider, T., Hof, B., & Westerweel, J. (2007). Turbulence transition in pipe flow. Annual Review of Fluid Mechanics. Annual Reviews. https://doi.org/10.1146/annurev.fluid.39.050905.110308
Eckhardt, Bruno, Tobias Schneider, Björn Hof, and Jerry Westerweel. “Turbulence Transition in Pipe Flow.” Annual Review of Fluid Mechanics. Annual Reviews, 2007. https://doi.org/10.1146/annurev.fluid.39.050905.110308.
B. Eckhardt, T. Schneider, B. Hof, and J. Westerweel, “Turbulence transition in pipe flow,” Annual Review of Fluid Mechanics, vol. 39. Annual Reviews, pp. 447–468, 2007.
Eckhardt B, Schneider T, Hof B, Westerweel J. 2007. Turbulence transition in pipe flow. Annual Review of Fluid Mechanics. 39, 447–468.
Eckhardt, Bruno, et al. “Turbulence Transition in Pipe Flow.” Annual Review of Fluid Mechanics, vol. 39, Annual Reviews, 2007, pp. 447–68, doi:10.1146/annurev.fluid.39.050905.110308.