Pattern formation in inclined layer convection

摘要: We report experiments on thermally driven convection in an inclined layer of large aspect ratio a fluid Prandtl number sigma approximately 1. observed new nonlinear, mostly spatiotemporally chaotic, states. At small angles inclination we found longitudinal rolls, subharmonic oscillations, Busse undulation chaos, and crawling rolls. larger angles, the vicinity transition from buoyancy- to shear-driven instability, drifting transverse localized bursts, bimodals. For past vertical, when heated above, rolls switching diamond panes.