On the velocity of turbidity currents over moderate slopes Full article
| Journal |
Fluid Dynamics Research
ISSN: 0169-5983 |
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| Output data | Year: 2019, Volume: 51, Number: 3, Pages: 035501 Pages count : 1 DOI: 10.1088/1873-7005/ab0091 | ||||
| Tags | turbidity currents, density flows, self-similar solutions, head velocity, moderate slopes | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Российский научный фонд | 15–11–20013 |
Abstract:
In the present article we consider the problem of underwater avalanches
propagating over moderate slopes. The main goal of our work is to investigate
the avalanche front velocity selection mechanism when it propagates downwards. In particular, we show that the front velocity does not depend univocally on the mass of sediments. This phenomenon is investigated and
explained in our study. Moreover, we derive from the first principles a depthaveraged model. Then, we assume that sediments are uniformly distributed
along the slope. In this case, they can be entrained into the flow head and a
self-sustained regime can be established. One of the main findings of our study
is that the avalanche front velocity is not unique due to a hysteresis
phenomenon. We attempt to explain this phenomenon using dynamical systems considerations.
Cite:
Liapidevskii V.Y.
, Dutykh D.
On the velocity of turbidity currents over moderate slopes
Fluid Dynamics Research. 2019. V.51. N3. P.035501. DOI: 10.1088/1873-7005/ab0091 WOS Scopus РИНЦ OpenAlex
On the velocity of turbidity currents over moderate slopes
Fluid Dynamics Research. 2019. V.51. N3. P.035501. DOI: 10.1088/1873-7005/ab0091 WOS Scopus РИНЦ OpenAlex
Identifiers:
| Web of science: | WOS:000461668200001 |
| Scopus: | 2-s2.0-85069041791 |
| Elibrary: | 41612860 |
| OpenAlex: | W2790055204 |