Numerical prediction of flow characteristics and retardation of mixing in a turbulent swirling flow
| Autor: | Takagi Toshimi, Hirai Shuichiro, Higashiya Teruyoshi |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Turbulence business.industry K-epsilon turbulence model Mechanical Engineering Thermodynamics Mechanics Computational fluid dynamics Condensed Matter Physics Pipe flow Physics::Fluid Dynamics Momentum Stress (mechanics) Flow (mathematics) business Mixing (physics) |
| Zdroj: | International Journal of Heat and Mass Transfer. 32:121-130 |
| ISSN: | 0017-9310 |
| DOI: | 10.1016/0017-9310(89)90096-3 |
| Popis: | Numerical predictions are compared with the experiments of turbulent swirling flow and mixing in a stationary pipe. Two kinds of turbulence models, the k-e two equation model and the stress/flux equation model, are employed in the present calculations. The axial and tangential velocity profiles and the characteristics of the retardation of mixing in the presence of the swirl can be predicted by the stress/flux equation model, whereas the k-e two equation model fails in this respect. Comprehensible interpretations of the phenomena, especially of the retardation of turbulent transport of momentum and species (He) due to swirl, are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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