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The effect of small density differences at large confluences. / van Rooijen, Erik; Mosselman, Erik; Sloff, Kees; Uijttewaal, Wim.

2017. 40-41 Abstract from NCR-Days 2017, Wageningen, Netherlands.

Research output: Contribution to conferenceAbstractScientific

Harvard

van Rooijen, E, Mosselman, E, Sloff, K & Uijttewaal, W 2017, 'The effect of small density differences at large confluences', NCR-Days 2017, Wageningen, Netherlands, 1/02/17 - 3/02/17 pp. 40-41.

APA

van Rooijen, E., Mosselman, E., Sloff, K., & Uijttewaal, W. (2017). The effect of small density differences at large confluences. 40-41. Abstract from NCR-Days 2017, Wageningen, Netherlands.

Vancouver

van Rooijen E, Mosselman E, Sloff K, Uijttewaal W. The effect of small density differences at large confluences. 2017. Abstract from NCR-Days 2017, Wageningen, Netherlands.

Author

van Rooijen, Erik ; Mosselman, Erik ; Sloff, Kees ; Uijttewaal, Wim. / The effect of small density differences at large confluences. Abstract from NCR-Days 2017, Wageningen, Netherlands.

BibTeX

@conference{b742fde8fe214529a839eb437a4edda6,
title = "The effect of small density differences at large confluences",
abstract = "Confluences are fascinating elements in river systems. The merging of tributary rivers produces complex hydrodynamics that can play an important role in sediment transport problems, ecological studies or the routing of a pollutant. If the two merging rivers originate from different regions they can have different characteristics. One such a characteristic can be the water density. The influence of many different properties of a confluence on the hydrodynamics has already been investigated. The effect of bed discordance has been described [Biron et al., 1996], as well as that of the momentum ratio [Best & Reid, 1984]. Also a lot of work has been carried out on the mixing layer that may form (van Prooijen & Uijttewaal, 2002). The effects of density differences, on the contrary, have received little attention. Rare examples are the work by Cook & Richmond (2004) and Lyubimova et al. (2014). The aim of this research is to see how and when density differences are important in confluences with respect to other occurring flow structures. Non-dimensional flow parameters will be linked to certain types of flow. These nondimensional parameters can then be used to determine which flow processes can occur. This research shows the importance that small density differences can have on the local hydrodynamics near a confluence. We explain the processes and present suitable nondimensional parameters to describe the flow. ",
author = "{van Rooijen}, Erik and Erik Mosselman and Kees Sloff and Wim Uijttewaal",
note = "A.J.F. Hoitink, T.V. de Ruijsscher, T.J. Geertsema, B. Makaske, J. Wallinga, J.H.J. Candel, J. Poelman (Eds.) NCR days 2017, Febr. 1-3, 2017. Book of abstracts, NCR publication 41-2017.; NCR-Days 2017 ; Conference date: 01-02-2017 Through 03-02-2017",
year = "2017",
language = "English",
pages = "40--41",

}

RIS

TY - CONF

T1 - The effect of small density differences at large confluences

AU - van Rooijen, Erik

AU - Mosselman, Erik

AU - Sloff, Kees

AU - Uijttewaal, Wim

N1 - A.J.F. Hoitink, T.V. de Ruijsscher, T.J. Geertsema, B. Makaske, J. Wallinga, J.H.J. Candel, J. Poelman (Eds.) NCR days 2017, Febr. 1-3, 2017. Book of abstracts, NCR publication 41-2017.

PY - 2017

Y1 - 2017

N2 - Confluences are fascinating elements in river systems. The merging of tributary rivers produces complex hydrodynamics that can play an important role in sediment transport problems, ecological studies or the routing of a pollutant. If the two merging rivers originate from different regions they can have different characteristics. One such a characteristic can be the water density. The influence of many different properties of a confluence on the hydrodynamics has already been investigated. The effect of bed discordance has been described [Biron et al., 1996], as well as that of the momentum ratio [Best & Reid, 1984]. Also a lot of work has been carried out on the mixing layer that may form (van Prooijen & Uijttewaal, 2002). The effects of density differences, on the contrary, have received little attention. Rare examples are the work by Cook & Richmond (2004) and Lyubimova et al. (2014). The aim of this research is to see how and when density differences are important in confluences with respect to other occurring flow structures. Non-dimensional flow parameters will be linked to certain types of flow. These nondimensional parameters can then be used to determine which flow processes can occur. This research shows the importance that small density differences can have on the local hydrodynamics near a confluence. We explain the processes and present suitable nondimensional parameters to describe the flow.

AB - Confluences are fascinating elements in river systems. The merging of tributary rivers produces complex hydrodynamics that can play an important role in sediment transport problems, ecological studies or the routing of a pollutant. If the two merging rivers originate from different regions they can have different characteristics. One such a characteristic can be the water density. The influence of many different properties of a confluence on the hydrodynamics has already been investigated. The effect of bed discordance has been described [Biron et al., 1996], as well as that of the momentum ratio [Best & Reid, 1984]. Also a lot of work has been carried out on the mixing layer that may form (van Prooijen & Uijttewaal, 2002). The effects of density differences, on the contrary, have received little attention. Rare examples are the work by Cook & Richmond (2004) and Lyubimova et al. (2014). The aim of this research is to see how and when density differences are important in confluences with respect to other occurring flow structures. Non-dimensional flow parameters will be linked to certain types of flow. These nondimensional parameters can then be used to determine which flow processes can occur. This research shows the importance that small density differences can have on the local hydrodynamics near a confluence. We explain the processes and present suitable nondimensional parameters to describe the flow.

UR - http://resolver.tudelft.nl/uuid:b742fde8-fe21-4529-a839-eb437a4edda6

M3 - Abstract

SP - 40

EP - 41

T2 - NCR-Days 2017

Y2 - 1 February 2017 through 3 February 2017

ER -

ID: 42135166