Application of 3D numerical models in confluence hydrodynamics modelling
Само за регистроване кориснике
2012
Конференцијски прилог (Објављена верзија)
,
Dejana Đorđević, University of Illinois at Urbana-Champaign
Метаподаци
Приказ свих података о документуАпстракт
In this paper performance of the SSIIM2 model (3D finite-volume model with the k-ε-type turbulence model closure) in confluence hydrodynamics modelling is assessed using the published experimental data and the author’s field data. It is shown that the transfer of momentum from the tributary to the main channel and variations of the recirculation zone width are modeled satisfactorily, and that the shape of the velocity profiles in the post-confluence channel is captured well. However, velocity magnitudes are underestimated, especially that of the vertical velocity. This may be attributed to the fact that the model is based on the assumption of the hydrostatic pressure distribution, which is not satisfied at the confluence.
Кључне речи:
river confluence / 3D numerical model / k-ε-type turbulence model closure / transfer of momentum / recirculation zone / SSIIM2 modelИзвор:
Proceedings of XIX International Conference on Water Resources - CMWR2012, 2012, 1-8Издавач:
- University of Illinois at Urbana-Champaign
Финансирање / пројекти:
- Мерење и моделирање физичких, хемијских, биолошких и морфодинамичких параметара река и водних акумулација (RS-37009)
- Системи за одвођење кишних вода као део урбане и саобраћајне инфраструктуре (RS-37010)
Напомена:
- Zbornik radova je na internet stranici http://cmwr2012.cee.illinois.edu/Proceedings.html
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