Analogy between capillary motion and Friedmann-Robertson-Walker cosmologyD. Bini1, 2 and S. Succi1
1 Istituto per le Applicazioni del Calcolo "M. Picone", CNR - I-00161 Rome, Italy, EU
2 ICRA, University of Rome "La Sapienza" - I-00185 Rome, Italy, EU
received 14 December 2007; accepted in final form 5 March 2008; published May 2008
published online 21 April 2008
A formal equivalence between the motion of an inviscid fluid in a capillary tube and the Friedmann-Robertson-Walker cosmological equations is discussed. Similarly to the case of "sonic black holes" or "black-hole analogs", largely discussed in the recent literature, it is hoped that this analogy may inspire a class of capillary-filling experiments reproducing simple cosmological scenarios in terrestrial laboratories.
47.35.Pq - Capillary waves.
98.80.-k - Cosmology.
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