A Numerical Study on the Generation Mechanism of Turbulence-Driven Secondary Flow in a Square DuctSource: Journal of Fluids Engineering:;1993:;volume( 115 ):;issue: 001::page 172Author:Hyon Kook Myong
DOI: 10.1115/1.2910103Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The generation mechanism of turbulence-driven secondary flows in a square duct is numerically investigated in the present study by using an anisotropic low-Reynolds-number k–ε turbulence model. Special attention is directed to the distributions of turbulence quantities, which are responsible for the secondary flow generation, such as the anisotropy of normal Reynolds stresses and the secondary Reynolds shear stress acting on the cross-sectional plane. The vorticity transport process is also discussed in detail, based on the numerical evaluation of the individual terms which appear in the streamwise vorticity transport equation.
keyword(s): Flow (Dynamics) , Turbulence , Ducts , Mechanisms , Vorticity , Stress , Anisotropy , Shear (Mechanics) , Equations AND Transport processes ,
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| contributor author | Hyon Kook Myong | |
| date accessioned | 2017-05-08T23:41:45Z | |
| date available | 2017-05-08T23:41:45Z | |
| date copyright | March, 1993 | |
| date issued | 1993 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27073#172_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/112194 | |
| description abstract | The generation mechanism of turbulence-driven secondary flows in a square duct is numerically investigated in the present study by using an anisotropic low-Reynolds-number k–ε turbulence model. Special attention is directed to the distributions of turbulence quantities, which are responsible for the secondary flow generation, such as the anisotropy of normal Reynolds stresses and the secondary Reynolds shear stress acting on the cross-sectional plane. The vorticity transport process is also discussed in detail, based on the numerical evaluation of the individual terms which appear in the streamwise vorticity transport equation. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | A Numerical Study on the Generation Mechanism of Turbulence-Driven Secondary Flow in a Square Duct | |
| type | Journal Paper | |
| journal volume | 115 | |
| journal issue | 1 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.2910103 | |
| journal fristpage | 172 | |
| journal lastpage | 175 | |
| identifier eissn | 1528-901X | |
| keywords | Flow (Dynamics) | |
| keywords | Turbulence | |
| keywords | Ducts | |
| keywords | Mechanisms | |
| keywords | Vorticity | |
| keywords | Stress | |
| keywords | Anisotropy | |
| keywords | Shear (Mechanics) | |
| keywords | Equations AND Transport processes | |
| tree | Journal of Fluids Engineering:;1993:;volume( 115 ):;issue: 001 | |
| contenttype | Fulltext |