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100			_aKalathil, Sruthi Thazhathe _950977
245			_aReview of step-pool hydrodynamics in mountain streams /
260			_bSage, _c2019.
300			_aVol 43, issue 5, 2019 : (607-626 p.).
520			_aStep-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 alternating super-critical and sub-critical flow conditions, which result in a non-uniform flow regime. Step-pools may also be constructed artificially to restore mountain incisions, and for creating close-to-nature fish passes. For hydraulic model development and various design considerations, the accurate prediction of flow phenomenon is required. This necessitates a detailed study of the turbulence phenomenon in natural step-pool reaches and its effect on the total flow. However, the influence of aerated conditions in step-pool hydrodynamics has not yet been adequately addressed. This paper presents a review of the mechanism of flow resistance and energy dissipation in step-pool mountain streams. Also, the significance of incorporating air entrainment in flow analysis, limitations and the way forward in modeling air–water flow in laboratory studies are discussed.
650			_aSteep streams, _950978
650			_a step-pools, _950979
650			_alarge-scale roughness, _950980
650			_a turbulence, _950981
650			_a air entrainment _950982
700			_aChandra, Venu _950983
773	0		_012665 _916502 _dLondon: Sage Publication Ltd, 2019. _tProgress in Physical Geography: Earth and Environment/ _x03091333
856			_uhttps://doi.org/10.1177/0309133319859807
942			_2ddc _cART
999			_c12706 _d12706