Flow dynamics and shape of rinnenkarren systems

Veress, Márton; Zentai, Zoltán; Péntek, Kálmán; Mitre, Zoltán; Deák, György; Samu, Szabolcs

doi:10.1016/j.geomorph.2013.05.019

Cited by 8 publications

(12 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kamenitzas with various morphologies (Veress, 2010) often appear in these places as well, which may be connected here to several tributary channels. The origin of local hollowing is attributed to flow with emerged vorticity at the junctions (Veress et al, 2013). The vorticity at the site of the junctions was confirmed by laboratory model experiments (Deák et al, 2012).…”

Section: Introductionmentioning

confidence: 73%

“…However, the increase in channel cross-section of the main channel can also occur locally at the tributary channel junctions (local hollowing), along short sections (≈0.3-1 m, Veress et al, 2013). Kamenitzas with various morphologies (Veress, 2010) often appear in these places as well, which may be connected here to several tributary channels.…”

Section: Introductionmentioning

confidence: 95%

“…Rinnenkarren are closed downhill arheic channels of dissolution origin, developed by rivulets (Figure 1, Sweeting, 1973;Trudgill, 1985;White, 1988;Hutchinson, 1996;Ford & Williams 2007;Veress, 2010). The channel systems (Horton-type channels, Ford & Williams, 1989, 2007 consist of a large main channel (often up to 30-50 m long) and joining smaller-sized tributary channels (Veress et al, 2013(Veress et al, , 2015a. Their widths and depths are a few decimeters at the most.…”

Section: Introductionmentioning

confidence: 99%

“…However, these were also applied to karst hydrology (Zhao et al, 2019) and speleogenesis (Dreybrodt et al, 2005;Cooper & Covington, 2020). In this study CFD simulation is also used for improving a previous model (Veress et al, 2013) of channel local hollowing development.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Revealing the development of local hollowings in rinnenkarren using field data (Totes Gebirge, Austria) and simulation of different numbers of channel junction

Mitre,

Veress

2023

View full text Add to dashboard Cite

The development of emerging hollowing parts of the main channels of rinnenkarren systems at tributary channel junctions is interpreted in this study using Computational Fluid Dynamics (CFD) simulation. In the field, data from cross-sections of 505 local hollowings with one or more tributary channel junctions were investigated. The shift in the width–depth ratio of the local hollowings was studied as the number of junctions and the size of the hollowing changed. Flow was simulated through CFD in digital model channels, and the nature of the resulting vorticity was interpreted. Field data show that local hollowings emerging in the main channels of the channel systems at the junctions. In the main channels, when only a few tributary channels join in the vicinity of each other, local hollowings deepen during their growth and, most often, gradually become pits (depth is larger than width), as the morphometric analysis suggests. As the number of tributary channels increases, the local hollowing may develop into a kamenitza (width is larger than depth). The model experiment suggests the explanation that more tributary channel junctions result in more extensive vorticity, which contributes to the lateral extension (widening) of this channel section. The distance of the tributary junctions from each other also influences the downstream dimension of the local hollowing. In the field, the larger this distance, the more separated the local hollowings induced by individual tributaries. The model experiment suggests that this may occur because the intense vorticity generated by individual junctions becomes increasingly sectionalized as the tributary channel density decreases.

show abstract

Section: Introductionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Revealing the development of local hollowings in rinnenkarren using field data (Totes Gebirge, Austria) and simulation of different numbers of channel junction

Mitre,

Veress

2023

View full text Add to dashboard Cite

show abstract

“…During the research of karst phenomena, laboratory experiments have often been employed (Curl, 1966;Pluhar and Ford, 1970;Quinif, 1973;Slabe, 1995;Veress et al, 1998Veress et al, , 2013Perne and Gabrovšek, 2009). Glew and Ford (1980) made an experiment similar to ours: they studied the relation between the number of rillenkarren that was created as a result of artificial rain on gypsum plates at different slope angles.…”

Section: Laboratory Experimentsmentioning

confidence: 99%