A drop does not fall in a straight line: a rationale for the width of stalagmites

作者: J. Parmentier , S. Lejeune , M. Maréchal , F. Bourges , D. Genty

DOI: 10.1098/RSPA.2019.0556

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摘要: Drops loaded in calcium ions detach from stalactites and impact the underlying stalagmites, thereby allowing these latter to grow through calcite precipitation. Nevertheless, little is known about influence of drop free fall splash dynamics on stalagmite shape width. Through high-speed imaging impacting drops stalagmites several caves, we observed that point position scattered, sometimes over centimetres. We show this dispersal has no external cause must, therefore, be self-induced. Using a Langevin-like equation, then propose prediction as function falling height travelled by drops. finally measured widths are correlated drop.

参考文章(37)
Zhipeng Duan, Boshu He, Yuanyuan Duan, Sphere Drag and Heat Transfer. Scientific Reports. ,vol. 5, pp. 12304- 12304 ,(2015) , 10.1038/SREP12304
Gregoire Mariethoz, Andy Baker, Bellie Sivakumar, Adam Hartland, Peter Graham, Chaos and irregularity in karst percolation Geophysical Research Letters. ,vol. 39, pp. n/a- n/a ,(2012) , 10.1029/2012GL054270
F. Bourges, P. Genthon, A. Mangin, D. D'Hulst, Microclimates of l'Aven d'Orgnac and other French limestone caves (Chauvet, Esparros, Marsoulas) International Journal of Climatology. ,vol. 26, pp. 1651- 1670 ,(2006) , 10.1002/JOC.1327
An-Bang Wang, Chi-Chang Chen, Splashing impact of a single drop onto very thin liquid films Physics of Fluids. ,vol. 12, pp. 2155- 2158 ,(2000) , 10.1063/1.1287511
Alexander J. Baker, David P. Mattey, James U.L. Baldini, Reconstructing modern stalagmite growth from cave monitoring, local meteorology, and experimental measurements of dripwater films Earth and Planetary Science Letters. ,vol. 392, pp. 239- 249 ,(2014) , 10.1016/J.EPSL.2014.02.036
Nick Laan, Karla G. de Bruin, Denis Bartolo, Christophe Josserand, Daniel Bonn, Maximum Diameter of Impacting Liquid Droplets Physical review applied. ,vol. 2, pp. 044018- ,(2014) , 10.1103/PHYSREVAPPLIED.2.044018
Andy Baker, Dominique Genty, Wolfgang Dreybrodt, William L. Barnes, Natalie J. Mockler, Jim Grapes, Testing Theoretically Predicted Stalagmite Growth Rate with Recent Annually Laminated Samples: Implications for Past Stalagmite Deposition Geochimica et Cosmochimica Acta. ,vol. 62, pp. 393- 404 ,(1998) , 10.1016/S0016-7037(97)00343-8
T. A. JOHNSON, V. C. PATEL, Flow past a sphere up to a Reynolds number of 300 Journal of Fluid Mechanics. ,vol. 378, pp. 19- 70 ,(1999) , 10.1017/S0022112098003206
Inga Labuhn, Dominique Genty, Hubert Vonhof, Clément Bourdin, Dominique Blamart, Eric Douville, Jiaoyang Ruan, Hai Cheng, R. Lawrence Edwards, Edwige Pons-Branchu, Monique Pierre, A high-resolution fluid inclusion δ18O record from a stalagmite in SW France: Modern calibration and comparison with multiple proxies Quaternary Science Reviews. ,vol. 110, pp. 152- 165 ,(2015) , 10.1016/J.QUASCIREV.2014.12.021