Journal article
An analytical study on turbulence with mixed-flow model and two-phase model
International journal of sediment research, Vol.27(2), pp.235-239
06/01/2012
DOI: 10.1016/S1001-6279(12)60031-6
Abstract
Suspended sediment is carried by turbulent water flows in rivers. Traditional sediment-laden flow analysis treats the suspension as a mixed liquid, and recent two-phase flow model enables separate velocity measurement of the two coupling phases. A simplified theoretical analysis was presented to discuss the differences between the two models in reporting turbulence intensity in experimental research. The turbulence intensity of the mixture is lower than the weighted average of those of the two phases in mixed-flow experiments. The mixture's turbulence intensity becomes higher than the average of the two phases in two-phase experiments due to the presence of velocity lag. The same set of data may lead to either an underestimation or an overestimation of actual turbulence levels when different models are used.
Details
- Title: Subtitle
- An analytical study on turbulence with mixed-flow model and two-phase model
- Creators
- Dan-xun LI - Tsinghua UniversityMarian Muste - University of IowaQiang Zhong - Tsinghua UniversityXing-kui Wang - Tsinghua University
- Resource Type
- Journal article
- Publication Details
- International journal of sediment research, Vol.27(2), pp.235-239
- DOI
- 10.1016/S1001-6279(12)60031-6
- ISSN
- 1001-6279
- Publisher
- Elsevier B.V
- Language
- English
- Date published
- 06/01/2012
- Academic Unit
- IIHR--Hydroscience and Engineering; Geographical and Sustainability Sciences
- Record Identifier
- 9984460330802771
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