Onset of small-amplitude oscillatory and both small- and finite-amplitude
steady double-component convection arising due to component different boundary
conditions in an infinite slot is studied for various slot orientations to the
gravity. The main focus is on two compensating background gradients of the
components. The physical mechanisms underlying steady and oscillatory
convection are analyzed from the perspective of a universally consistent
understanding of the effects of different boundary conditions.Comment: V2: Submitted to and published in Annals of Physics. 59 manuscript
pages, 15 figures (occupying 21 pages). The full abstract is on the first
page. Nonessential modifications/enhancements in the presentation (more
compact presentation of the text and figure data, some style improvements,
etc.
