3 papers
physics.flu-dyn2009
The turbulent mean-velocity profile: it is all in the spectrum
Gustavo Gioia, Nicholas Guttenberg, Nigel Goldenfeld +1
It has long been surmised that the mean-velocity profile (MVP) of a pipe flow is closely related to the spectrum of turbulent energy. Here we perform a spectral analysis to identif…
physics.flu-dyn2005
Rough-conduit flows and the existence of fully developed turbulence
G. Gioia, Pinaki Chakraborty, Fabián A. Bombardelli
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 v…
physics.flu-dyn2005
Turbulent Friction in Rough Pipes and the Energy Spectrum of the Phenomenological Theory
G. Gioia, Pinaki Chakraborty
The classical experiments on turbulent friction in rough pipes were performed by J. Nikuradse in the 1930's. Seventy years later, they continue to defy theory. Here we model Nikura…