Transverse phase diffusion in Rayleigh-Bénard convection
نویسنده
چکیده
2014 By a formal expansion in gradient of the phase variable we obtain the equations governing the relaxation of zig-zags. The application has been developed for convection close to the threshold. We use an 03B5-expansion of the solution for the realistic case of no slip (rigid) velocity boundary conditions. We obtain : D~ = 03BE20/03C40 (03B4k/kc + F(Pr) 03B4Ra/Rac) where the numerical values of the different quantities are given in the text. Points of comparison with other theories and earlier results concerning zig-zag instability are discussed. J. Physique LETTRES 43 (1982) L-253 L-258 15 AVRIL 1982, Classification Physics Abstracts 47.25
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تاریخ انتشار 2016