ImpingingPlumeIJHMT.pdf (5.26 MB)
Numerical simulations of a line plume impinging on a ceiling in cold fresh water
journal contribution
posted on 2017-01-30, 14:32 authored by Alabodite M. George, Anthony KayLaminar plumes from a line source of warm water at the base of a shallow, homogeneous body of cold water (below the temperature of maximum density) were simulated by a computational model. The plume water undergoes buoyancy reversal as it mixes with the cold ambient. If this occurs before the plume has reached the ceiling of the domain, the plume flaps from side to side. Otherwise, it spreads along the ceiling and then sinks, with a vortex enclosed between the rising plume and the sinking flow. Some of the dense, mixed water from the sinking flow is re-entrained into the rising plume, while the rest flows outwards along the floor. However, with high source temperatures, a sufficient volume of warm water eventually builds up to also form a positively buoyant gravity current along the ceiling.
Funding
AMG gratefully acknowledges the funding for his PhD studies (of which this work forms part) provided by Niger Delta University, Bayelsa State, Nigeria.
History
School
- Science
Department
- Mathematical Sciences
Published in
International Journal of Heat and Mass TransferVolume
108Pages
1364 - 1373 (10)Citation
GEORGE, A.M. and KAY, A., 2017. Numerical simulations of a line plume impinging on a ceiling in cold fresh water. International Journal of Heat and Mass Transfer, 108, part B pp. 1364-1373.Publisher
© ElsevierVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2017-01-05Publication date
2017Notes
This paper was published in the journal International Journal of Heat and Mass Transfer and the definitive published version is available at http://dx.doi.org/10.1016/j.ijheatmasstransfer.2017.01.016.Publisher version
Language
- en