Molecular-diffusive effects in penetrative convection
Fernando, H. J. S. ; Little, L. J.
New York, NY : American Institute of Physics (AIP)
Published 1990
New York, NY : American Institute of Physics (AIP)
Published 1990
| ISSN: |
1089-7666
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
An experimental study was performed to investigate the influence of molecular diffusion on turbulent entrainment during penetrative convection. The entrainment coefficient E was determined as a function of the Richardson number Ri and Peclet number Pe. It appears that, in parameter ranges 65〈Ri〈150 and 103〈Pe〈104, E is a function of Ri, independent of Pe, which indicates inertial-buoyancy dominated mixing and the unimportance of molecular diffusive effects. At high interfacial stabilities, 30〈Ri〈300, the entrainment law was found to be given by E∼Ri−1.
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| Type of Medium: |
Electronic Resource
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| URL: |