Rough-conduit flows and the existence of fully developed turbulence
G. Gioia, Pinaki Chakraborty, Fabián A. Bombardelli
Abstract
It is widely believed that at high Reynolds number (Re) all turbulent flows approach a state of "fully developed turbulence" defined by a unique, Re-independent statistics of the velocity fluctuations. Yet direct measurements of the velocity fluctuations have failed to yield clear-cut empirical evidence of the existence of fully developed turbulence. Here we relate the friction coefficient (f) of rough-conduit flows to the statistics of the velocity fluctuations. In light of experimental measurements of f, our results yield unequivocal evidence of the existence of fully developed turbulence.
Create a lesson
Related papers
Solutions of the Navier-Stokes Equation Through Affine Transformations: The Triad Triplet
Ö. D. Gürcan, L. Manfredini, P. Morel
Mean flow scaling in stably stratified temporally developing turbulent boundary layers
Hardy Baptiste, Costa Pedro
Mixed-precision GPU algorithms for efficient turbulent flow simulations with Raviart-Thomas finite elements
Ivan Prusak, Enes Mustafa Soydan, Ivan Pribec et al.
Experimental study of the impact dynamics of polymeric hollow droplets
Mohammad Mahdi Nasiri, Mohammad Reza Daneshvar Garmroodi, Damian Vadillo et al.
Well-posedness of neural turbulence closures and tangent dissipation
Zhen Zhang, George Em Karniadakis
IB-Flows: an open-source multi-GPU immersed boundary code for fluid-structure interaction
Giovanni Vagnoli, Martino Andrea Scarpolini, Fabio Guglietta et al.