The phase-locked mean impulse response of a turbulent channel flow
Fluid Dynamics
2015-06-26 v1
Abstract
We describe the first DNS-based measurement of the complete mean response of a turbulent channel flow to small external disturbances. Space-time impulsive perturbations are applied at one channel wall, and the linear response describes their mean effect on the flow field as a function of spatial and temporal separations. The turbulent response is shown to differ from the response a laminar flow with the turbulent mean velocity profile as base flow.
Keywords
Cite
@article{arxiv.physics/0611195,
title = {The phase-locked mean impulse response of a turbulent channel flow},
author = {Paolo Luchini and Maurizio Quadrio and Simone Zuccher},
journal= {arXiv preprint arXiv:physics/0611195},
year = {2015}
}
Comments
Accepted for publication in Physics of Fluids