Hydraulic Characteristics of Mixed Convection in a Heated Vertical PipeSource: Journal of Fluids Engineering:;1993:;volume( 115 ):;issue: 001::page 41Author:Jian-Chiu Han
DOI: 10.1115/1.2910111Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: By studying the integrated governing equations for mixed convection in a vertical pipe heated with constant wall heat flux, several concepts (or misconcepts) regarding convection mode and flow regimes are examined. A new alternative definition of convection mode reflecting the force balance in mixed convection is given. A new parameter, m (M), is introduced to quantatively characterize various regimes for mixed convection. Two specific cases for laminar and turbulent air flow with Re = 500 and 5000 respectively are studied numerically in detail. Typical behavior of m (M) for each case and other associated hydraulic characteristics of mixed convection are illustrated and discussed.
keyword(s): Mixed convection , Pipes , Convection , Equations , Heat flux , Force , Flow (Dynamics) , Turbulence AND Air flow ,
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| contributor author | Jian-Chiu Han | |
| date accessioned | 2017-05-08T23:41:44Z | |
| date available | 2017-05-08T23:41:44Z | |
| date copyright | March, 1993 | |
| date issued | 1993 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27073#41_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/112172 | |
| description abstract | By studying the integrated governing equations for mixed convection in a vertical pipe heated with constant wall heat flux, several concepts (or misconcepts) regarding convection mode and flow regimes are examined. A new alternative definition of convection mode reflecting the force balance in mixed convection is given. A new parameter, m (M), is introduced to quantatively characterize various regimes for mixed convection. Two specific cases for laminar and turbulent air flow with Re = 500 and 5000 respectively are studied numerically in detail. Typical behavior of m (M) for each case and other associated hydraulic characteristics of mixed convection are illustrated and discussed. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Hydraulic Characteristics of Mixed Convection in a Heated Vertical Pipe | |
| type | Journal Paper | |
| journal volume | 115 | |
| journal issue | 1 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.2910111 | |
| journal fristpage | 41 | |
| journal lastpage | 47 | |
| identifier eissn | 1528-901X | |
| keywords | Mixed convection | |
| keywords | Pipes | |
| keywords | Convection | |
| keywords | Equations | |
| keywords | Heat flux | |
| keywords | Force | |
| keywords | Flow (Dynamics) | |
| keywords | Turbulence AND Air flow | |
| tree | Journal of Fluids Engineering:;1993:;volume( 115 ):;issue: 001 | |
| contenttype | Fulltext |