Basics of lava-lamp convection Export

@article{citeulike:5921597, abstract = {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 equilibrium) states which can be sustained for several days. Two modes of lava-lamp convection could be identified by recording and evaluating temperature time series at the bottom and at the top of the container: a ” slow” mode is determined by an effective heat transport speed at a given temperature gradient, while a second mode of constant periodicity is viscosity limited. Contrasting of laboratory and geophysical observations yields the conclusion that the frequently suggested lava-lamp analogy fails for the accepted models of mantle convection.}, author = {Gy\"{u}re, Bal\'{a}zs and J\'{a}nosi, Imre M.}, citeulike-article-id = {5921597}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLEEE8000080000004046307000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRE/v80/e046307}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevE.80.046307}, day = {8}, doi = {10.1103/PhysRevE.80.046307}, journal = {Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)}, keywords = {analytic, convection, fluid, heating, lava-lamp}, month = {October}, number = {4}, pages = {046307+}, posted-at = {2009-10-31 07:24:23}, priority = {2}, publisher = {APS}, title = {Basics of lava-lamp convection}, url = {http://dx.doi.org/10.1103/PhysRevE.80.046307}, volume = {80}, year = {2009} }

TY - JOUR ID - citeulike:5921597 L3 - citeulike-article-id:5921597 N2 - 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 equilibrium) states which can be sustained for several days. Two modes of lava-lamp convection could be identified by recording and evaluating temperature time series at the bottom and at the top of the container: a “slow” mode is determined by an effective heat transport speed at a given temperature gradient, while a second mode of constant periodicity is viscosity limited. Contrasting of laboratory and geophysical observations yields the conclusion that the frequently suggested lava-lamp analogy fails for the accepted models of mantle convection. IS - 4 JF - Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) TI - Basics of lava-lamp convection PB - APS VL - 80 SP - 046307 KW - analytic KW - convection KW - fluid KW - heating KW - lava-lamp AU - Gyüre, Balázs AU - Jánosi, Imre PY - 2009/10/08/ UR - http://dx.doi.org/10.1103/PhysRevE.80.046307 ER -