scispace - formally typeset
Journal ArticleDOI

Review of step-pool hydrodynamics in mountain streams:

Reads0
Chats0
TLDR
In this paper, steppools are one of the major types of bed morphology prevalent in mountain streams and they have a unique flow structure as compared to low-gradient streams, in terms of large boundary elements and...
Abstract
Step-pools are one of the major types of bed morphology prevalent in mountain streams. They have a unique flow structure as compared to low-gradient streams, in terms of large boundary elements and...

read more

Citations
More filters
Journal ArticleDOI

The role of infrequently mobile boulders in modulating landscape evolution and geomorphic hazards

TL;DR: In this paper, the authors review progress on five key questions related to how boulders influence the evolution of unglaciated, eroding landscapes: 1) What factors control boulder production on eroding hillslopes and the subsequent downslope evolution of the boulder size distribution.
Journal Article

Step-Pool Streams: An Adjustment to Maximum Flow Resistance

TL;DR: In this paper, an experiment was conducted to study the maximum flow resistance of step pool streams and the morphology of the steps formed from clastic materials, and the step pool formation was qualitatively simulated to analyze numerically the formation process.
Journal ArticleDOI

Energy Loss in Steep Open Channels with Step-Pools

TL;DR: In this paper, three-dimensional numerical simulations were performed for different flow rates and various geometrical parameters of step-pools in steep open channels to gain insight into the occurrence of energy loss and its dependence on the flow structure.

Equilibrium geomorphological conditions for high gradient bed streams

TL;DR: In this article, the authors identify the flow conditions under which stable bedforms exist; provide the geometric characteristics of these bedforms; measure the magnitude of the streamwise velocity and energy dissipation factor; and determine the friction factor under various flow conditions and gravel sizes.
Journal ArticleDOI

Flow Resistance in Very Rough Channels

TL;DR: In this paper , the authors used a double-averaging approach to estimate the width, reach, and doubleaveraged variables for steady, uniform flow in an open channel, using an empirical model for the coefficient of form drag, and a flow resistance model that compares well to a large data set of flow velocity in natural channels.
References
More filters
Journal ArticleDOI

The influence of roughness structure on flow resistance on steep slopes

TL;DR: In this article, the effect of roughness on flow resistance in mountain streams is investigated and the standard deviation of the bed elevations is introduced as a characteristic roughness length and its applicability is verified by the analysis of experimental data.
Journal ArticleDOI

Form and stability of step-pool channels : Research progress

TL;DR: In this paper, the authors propose that step-pools exist in a jammed state whereby the boulders are structurally arranged within the channel and thereby stabilize it, and that once a step has formed, a scour pool with a characteristic length and depth develops downstream, creating a zone where additional steps are unlikely to occur.
Journal ArticleDOI

Hyperconcentrated Flow and Sediment Transport at Steep Slopes

TL;DR: In this article, the effect of an increasing fluid density and viscosity on the flow behavior and the bed-load transport capacity of a fine-material slurry of a debris flow was examined.

Channel classification, prediction of channel response, and assessment of channel condition

TL;DR: In this paper, a process-based landscape and channel classification is proposed as a framework for assessing watershed response to natural and anthropogenic environmental change, focusing mainly on the valley segment and channel reach levels.