| Autor: |
Inam, Mohammad I., Lin, Wenxian, Armfield, Steven W., Khatamifar, Mehdi |
| Předmět: |
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| Zdroj: |
Fluids; Apr2023, Vol. 8 Issue 4, p127, 22p |
| Abstrakt: |
The flow behavior of weak symmetric plane fountains in linearly stratified fluids is studied numerically with three-dimensional simulations over a range of the Froude ( F r ), Reynolds ( R e ), and stratification numbers (s). The two main parameters describing the fountain characterization are the dimensionless maximum fountain penetration height ( z m ) and intrusion velocity ( u i n t ), which differ significantly at different flow development stages. It was found that the stratification stabilizes the symmetry of the weak fountains, which makes the fountain become asymmetric at a larger F r value, and z m at the fully developed stage continues to increase as a result of the intrusion, which continually changes the ambient fluid stratification features, thus the buoyant force. The evolution of intrusion experiences three distinct stages. Both F r and s have effects on z m and u i n t , with the effect of F r usually larger than that of s. The overall impacts of F r and s can be quantified in terms of F r a s b , with a and b varying for different parameters. With numerical results, empirical correlations are produced in terms of F r a s b for each relevant parameter, which generally predict the results very well. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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