Spectral Analysis of a Fluid under Thermal Constraint

摘要: Abstract A spectral analysis is presented to investigate the onset of convective instability in a fluid subject linear temperature gradient. The hydrodynamic theory developed for case binary system, where concentration one components small. Therefore present results will be applicable Brownian system. We consider exclusively those modes which correspond central distribution, i.e., diffusion mode and thermal diffusivity mode. One finds that are effected by presence external gradient such way spectrum scattered light should exhibit an important narrowing peak slight when approaching critical point. Only affected limit pure