Thermal convection in horizontal rectangular enclosures at moderate Rayleigh numbers: Effect of sidewall conductance and aspect ratio
| Autor: | Richard J Goldstein, U. Madanan |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Fluid Flow and Transfer Processes
Materials science Convective heat transfer Aspect ratio Mechanical Engineering Enclosure Conductance 02 engineering and technology Rayleigh number Mechanics 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas symbols.namesake Thermal conductivity 0103 physical sciences symbols Rayleigh scattering 0210 nano-technology |
| Zdroj: | International Journal of Heat and Mass Transfer. 136:178-185 |
| ISSN: | 0017-9310 |
| DOI: | 10.1016/j.ijheatmasstransfer.2019.02.076 |
| Popis: | Moderate Rayleigh number thermal convection for horizontal rectangular enclosure is experimentally studied for 1.85 × 10 6 ⩽ Ra ⩽ 1.04 × 10 11 . The best fit for the investigated range of Rayleigh numbers is found to be Nu = 0.067 Ra 0.330 when a sidewall material of very low thermal conductivity is employed. The effect of sidewall conductance and aspect ratio on the Nu - Ra relationship is also scrutinized. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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