Pattern formation without heating in an evaporative convection experiment

Details Pattern formation without heating in an evaporative convection experiment Pattern formation without heating in an evaporative convection experiment

2003-11-11

arxiv.org/abs/nlin/0311019v1

Nonlinear Sciences

Pattern Formation and Solitons

Submitted to Europhysics Letters

Scientific paper

10.1209/epl/i2003-10266-0

We present an evaporation experiment in a single fluid layer. When latent heat associated to the evaporation is large enough, the heat flow through the free surface of the layer generates temperature gradients that can destabilize the conductive motionless state giving rise to convective cellular structures without any external heating. The sequence of convective patterns obtained here without heating, is similar to that obtained in B\'enard-Marangoni convection. This work present the sequence of spatial bifurcations as a function of the layer depth. The transition between square to hexagonal pattern, known from non-evaporative experiments, is obtained here with a similar change in wavelength.

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