Averaging theory for the structure of hydraulic jumps and separation in laminar free-surface flows
Fluid Dynamics
2009-10-30 v1
Abstract
We present a simple viscous theory of free-surface flows in boundary layers, which can accommodate regions of separated flow. In particular this yields the structure of stationary hydraulic jumps, both in their circular and linear versions, as well as structures moving with a constant speed. Finally we show how the fundamental hydraulic concepts of subcritical and supercritical flow, originating from inviscid theory, emerge at intermediate length scales in our model.
Keywords
Cite
@article{arxiv.physics/9708007,
title = {Averaging theory for the structure of hydraulic jumps and separation in laminar free-surface flows},
author = {Tomas Bohr and Vachtang Putkaradze and Shinya Watanabe},
journal= {arXiv preprint arXiv:physics/9708007},
year = {2009}
}
Comments
6 EPSI figs included by psfig; 4 pages; to appear in PRL, vol.79, 1038 (Aug.11, 1997)