Near-wall modeling of turbulent heat fluxes
The near-wall asymptotic behavior of the turbulent heat fluxes is analyzed and the result is used to formulate a second-moment turbulence closure for heat flux transport near a wall. The analysis shows that the pressure diffusion and viscous dissipation terms are of primary importance in the near-wa...
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| Veröffentlicht in: | International journal of heat and mass transfer 1990-07, Vol.33 (7), p.1429-1440 |
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| container_end_page | 1440 |
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| container_issue | 7 |
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| container_title | International journal of heat and mass transfer |
| container_volume | 33 |
| creator | LAI, Y. G SO, R. M. C |
| description | The near-wall asymptotic behavior of the turbulent heat fluxes is analyzed and the result is used to formulate a second-moment turbulence closure for heat flux transport near a wall. The analysis shows that the pressure diffusion and viscous dissipation terms are of primary importance in the near-wall region and have to be properly modeled in the transport equations. New models satisfying the near-wall balance between viscous diffusion, viscous dissipation and pressure diffusion, and also having the characteristics of approaching their respective conventional high-Reynolds-number models far away from the wall are proposed. |
| doi_str_mv | 10.1016/0017-9310(90)90040-2 |
| format | Article |
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| identifier | ISSN: 0017-9310 |
| ispartof | International journal of heat and mass transfer, 1990-07, Vol.33 (7), p.1429-1440 |
| issn | 0017-9310 1879-2189 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_746252970 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | diffusion Exact sciences and technology Fluid dynamics flux Fundamental areas of phenomenology (including applications) mathematical models Physics Turbulent flows, convection, and heat transfer |
| title | Near-wall modeling of turbulent heat fluxes |
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