Abstract: Field surveys and experiments in two tilting flumes on hyperconcentrated sand‐water‐mixture (swm) flows were conducted. This paper is limited to supercritical flows over a flat bed. It is shown that an equilibrium slope ...

Abstract: Field surveys and experiments in a tilting flume on hyperconcentrated sand‐water mixture (SWM) flows were conducted. At slopes slightly smaller than the equilibrium slope, a rapid development of sand bars propagating ...