Sharifulin, Albert N; Bezprozvannikh, Vladimir A; Poludnitsin, Anatoly N (2014): A laboratory-scale experiment and a numerical simulation of unusual spiral plumes in a High-Prandtl-number fluid, links supplementary material [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.836247, Supplement to: Sharifulin, AN et al. (preprint): A Laboratory-Scale Experiment and a Numerical Simulation of Unusual Spiral Plumes in a High-Prandtl-number Fluid. arXiv, https://doi.org/10.48550/ARXIV.1302.5283
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Abstract:
We experimentally and numerically investigated the generation of plumes from a local heat source (LHS) and studied the interaction of these plumes with cellular convective motion (CCM) in a rectangular cavity filled with silicon oil at a Prandtl number (Pr) of approximately two thousand. The LHS is generated using a 0.2-W green laser beam. A roll-type CCM is generated by vertically heating one side of the cavity. The CCM may lead to the formation of an unusual spiral convective plume that resembles a vertical Archimedes spiral. A similar plume is obtained in a direct numerical simulation.
We discuss the physical mechanism for the formation of a spiral plume and the application of the results to mantle convection problems. We also estimate the Reynolds (Re) and Rayleigh (Ra) numbers and apply self-similarity theory to convection in the Earth's mantle. Spiral plumes can be used to interpret mantle tomography results over the last decade.
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| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File name | File name | Sharifulin, Albert N | |||
| 2 | File format | File format | Sharifulin, Albert N | |||
| 3 | File size | File size | kByte | Sharifulin, Albert N | ||
| 4 | Uniform resource locator/link to file | URL file | Sharifulin, Albert N |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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