The rise of fully turbulent flow

Song B, Barkley D, Mukund V, Lemoult G, Avila Canellas M, Hof B (2015)


Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2015

Journal

Book Volume: 526

Pages Range: 550-553

Journal Issue: 7574

DOI: 10.1038/nature15701

Abstract

Over a century of research into the origin of turbulence in wall-bounded shear flows has resulted in a puzzling picture in which turbulence appears in a variety of different states competing with laminar background flow. At moderate flow speeds, turbulence is confined to localized patches; it is only at higher speeds that the entire flow becomes turbulent. The origin of the different states encountered during this transition, the front dynamics of the turbulent regions and the transformation to full turbulence have yet to be explained. By combining experiments, theory and computer simulations, here we uncover a bifurcation scenario that explains the transformation to fully turbulent pipe flow and describe the front dynamics of the different states encountered in the process. Key to resolving this problem is the interpretation of the flow as a bistable system with nonlinear propagation (advection) of turbulent fronts. These findings bridge the gap between our understanding of the onset of turbulence and fully turbulent flows.

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How to cite

APA:

Song, B., Barkley, D., Mukund, V., Lemoult, G., Avila Canellas, M., & Hof, B. (2015). The rise of fully turbulent flow. Nature, 526(7574), 550-553. https://dx.doi.org/10.1038/nature15701

MLA:

Song, Baofang, et al. "The rise of fully turbulent flow." Nature 526.7574 (2015): 550-553.

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