Modelling of three-dimensional particle rebound from an anisotropic rough wall
Само за регистроване кориснике
2021
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In gas-solid confined flows, particle rebound on a rough wall may have a great influence on the macroscopic properties of both phases. Existing simulation methods use simplified approaches where surface roughness is modelled as two-dimensional or isotropic. To improve the accuracy of such simulations, an anisotropic virtual rough wall statistical approach and the corresponding Lagrangian stochastic particle-wall collision model are proposed. From deterministic simulations of the impact of particles on the anisotropic virtual wall given as correlated bi-Gaussian surface, wall-normal vector angle statistics are used for model development. Rebound angle statistics computed from deterministic simulations and using the proposed stochastic model are in very good agreement. Incident particles in vertical planes not collinear with one of the principal directions of the anisotropic rough surface are bouncing with a mean transverse angle towards the principal direction of lower roughness.
Кључне речи:
Virtual wall / Three-dimensional particle rebound / Shadow effect / Multiple particle-wall collisions / Anisotropic rough wallИзвор:
Powder Technology, 2021, 393, 165-183Издавач:
- Elsevier, Amsterdam
Финансирање / пројекти:
- Примена савремених мерних и прорачунских техника за изучавање струјних параметара вентилационих система на моделу енергетски изузетно ефикасног (пасивног) објекта (RS-MESTD-Technological Development (TD or TR)-35046)
DOI: 10.1016/j.powtec.2021.07.055
ISSN: 0032-5910
WoS: 000696932200008
Scopus: 2-s2.0-85111607817
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Radenković, Darko AU - Simonin, Olivier PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3489 AB - In gas-solid confined flows, particle rebound on a rough wall may have a great influence on the macroscopic properties of both phases. Existing simulation methods use simplified approaches where surface roughness is modelled as two-dimensional or isotropic. To improve the accuracy of such simulations, an anisotropic virtual rough wall statistical approach and the corresponding Lagrangian stochastic particle-wall collision model are proposed. From deterministic simulations of the impact of particles on the anisotropic virtual wall given as correlated bi-Gaussian surface, wall-normal vector angle statistics are used for model development. Rebound angle statistics computed from deterministic simulations and using the proposed stochastic model are in very good agreement. Incident particles in vertical planes not collinear with one of the principal directions of the anisotropic rough surface are bouncing with a mean transverse angle towards the principal direction of lower roughness. PB - Elsevier, Amsterdam T2 - Powder Technology T1 - Modelling of three-dimensional particle rebound from an anisotropic rough wall EP - 183 SP - 165 VL - 393 DO - 10.1016/j.powtec.2021.07.055 ER -
@article{ author = "Radenković, Darko and Simonin, Olivier", year = "2021", abstract = "In gas-solid confined flows, particle rebound on a rough wall may have a great influence on the macroscopic properties of both phases. Existing simulation methods use simplified approaches where surface roughness is modelled as two-dimensional or isotropic. To improve the accuracy of such simulations, an anisotropic virtual rough wall statistical approach and the corresponding Lagrangian stochastic particle-wall collision model are proposed. From deterministic simulations of the impact of particles on the anisotropic virtual wall given as correlated bi-Gaussian surface, wall-normal vector angle statistics are used for model development. Rebound angle statistics computed from deterministic simulations and using the proposed stochastic model are in very good agreement. Incident particles in vertical planes not collinear with one of the principal directions of the anisotropic rough surface are bouncing with a mean transverse angle towards the principal direction of lower roughness.", publisher = "Elsevier, Amsterdam", journal = "Powder Technology", title = "Modelling of three-dimensional particle rebound from an anisotropic rough wall", pages = "183-165", volume = "393", doi = "10.1016/j.powtec.2021.07.055" }
Radenković, D.,& Simonin, O.. (2021). Modelling of three-dimensional particle rebound from an anisotropic rough wall. in Powder Technology Elsevier, Amsterdam., 393, 165-183. https://doi.org/10.1016/j.powtec.2021.07.055
Radenković D, Simonin O. Modelling of three-dimensional particle rebound from an anisotropic rough wall. in Powder Technology. 2021;393:165-183. doi:10.1016/j.powtec.2021.07.055 .
Radenković, Darko, Simonin, Olivier, "Modelling of three-dimensional particle rebound from an anisotropic rough wall" in Powder Technology, 393 (2021):165-183, https://doi.org/10.1016/j.powtec.2021.07.055 . .