Numerical simulation of ash-spills induced by dike failure on ash tailings impoundments - a case study

Đorđević, Dejana; Komatina, Dejan; Jovanović, Miodrag

Само за регистроване кориснике

2005

Аутори

Đorđević, Dejana
Komatina, Dejan
Jovanović, Miodrag

Конференцијски прилог (Објављена верзија)

Taylor & Francis Group

Метаподаци

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Апстракт

A model developed for simulation of both discontinuous clear-water flows and hyper-concentrated discontinuous flows is validated on a real dike failure event, which happened on an ash-tailings impoundment on site. Numerical model is based on the MacCormack finite-difference scheme and involves constitutive equation in a form of the general yield-power law (Herschel-Bulkley's rheological model). The influence of the solid phase volumetric concentration on the propagation characteristics of the dike-break wave is analysed. Rheological properties of ash-water mixtures are determined in the laboratory using a tube viscometer. Definition of the corresponding constitutive equations is based on the test results. In that respect, the rheological properties of ash may be described by the Bingham model.

Кључне речи:

hyper-concentrated flow / discontinuous flow / dike break / rheological model / numerical model / MacCormack numerical scheme

Извор:
Proceedings of the 6th International Conference On Hydrodynamics - ICHD2004, 2005, 421-427

Издавач:

Taylor & Francis Group

Финансирање / пројекти:

Интегрално уређење водотока и одбрана од поплава у контексту одрживог развоја и заштите природних богатстава, МНТиР Републике Србије, Национални програм примењених и развојних истраживања уређења, заштите и коришћења вода у Србији
Унапређење методологије и модела за ефикасно праћење и управљање квалитетом вода у водотоцима, МНТиР Републике Србије, Национални програм примењених и развојних истраживања уређења, заштите и коришћења вода у Србији

TY  - CONF
AU  - Đorđević, Dejana
AU  - Komatina, Dejan
AU  - Jovanović, Miodrag
PY  - 2005
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2279
AB  - A model developed for simulation of both discontinuous clear-water flows and hyper-concentrated discontinuous flows is validated on a real dike failure event, which happened on an ash-tailings impoundment on site. Numerical model is based on the MacCormack finite-difference scheme and involves constitutive equation in a form of the general yield-power law (Herschel-Bulkley's rheological model). The influence of the solid phase volumetric concentration on the propagation characteristics of the dike-break wave is analysed. Rheological properties of ash-water mixtures are determined in the laboratory using a tube viscometer. Definition of the corresponding constitutive equations is based on the test results. In that respect, the rheological properties of ash may be described by the Bingham model.
PB  - Taylor & Francis Group
C3  - Proceedings of the 6th International Conference On Hydrodynamics - ICHD2004
T1  - Numerical simulation of ash-spills induced by dike failure on ash tailings impoundments - a case study
EP  - 427
SP  - 421
ER  -

@conference{
author = "Đorđević, Dejana and Komatina, Dejan and Jovanović, Miodrag",
year = "2005",
abstract = "A model developed for simulation of both discontinuous clear-water flows and hyper-concentrated discontinuous flows is validated on a real dike failure event, which happened on an ash-tailings impoundment on site. Numerical model is based on the MacCormack finite-difference scheme and involves constitutive equation in a form of the general yield-power law (Herschel-Bulkley's rheological model). The influence of the solid phase volumetric concentration on the propagation characteristics of the dike-break wave is analysed. Rheological properties of ash-water mixtures are determined in the laboratory using a tube viscometer. Definition of the corresponding constitutive equations is based on the test results. In that respect, the rheological properties of ash may be described by the Bingham model.",
publisher = "Taylor & Francis Group",
journal = "Proceedings of the 6th International Conference On Hydrodynamics - ICHD2004",
title = "Numerical simulation of ash-spills induced by dike failure on ash tailings impoundments - a case study",
pages = "427-421"
}

Đorđević, D., Komatina, D.,& Jovanović, M.. (2005). Numerical simulation of ash-spills induced by dike failure on ash tailings impoundments - a case study. in Proceedings of the 6th International Conference On Hydrodynamics - ICHD2004
Taylor & Francis Group., 421-427.

Đorđević D, Komatina D, Jovanović M. Numerical simulation of ash-spills induced by dike failure on ash tailings impoundments - a case study. in Proceedings of the 6th International Conference On Hydrodynamics - ICHD2004. 2005;:421-427..

Đorđević, Dejana, Komatina, Dejan, Jovanović, Miodrag, "Numerical simulation of ash-spills induced by dike failure on ash tailings impoundments - a case study" in Proceedings of the 6th International Conference On Hydrodynamics - ICHD2004 (2005):421-427.