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Physical Review E
Laboratory experiments are reported in an immiscible two-fluid system, where thermal convection is initiated by heating at the bottom and cooling at the top. The lava-lamp regime is characterized by a robust periodic exchange process where warm blobs rise from the bottom, attach to the top surface for a while, then cold blobs sink down again. Immiscibility allows to reach real steady ͑dynamical equilibrium͒ states which can be sustained for several days. Two modes of lava-lamp convection coulddoi:10.1103/physreve.80.046307 pmid:19905436 fatcat:pxuug6kenvhcrpbj5ie7plpyai