Digitale Medien
New York, NY
:
American Institute of Physics (AIP)
Physics of Fluids
5 (1993), S. 1575-1582
ISSN:
1089-7666
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
The Marangoni–Bénard instability for a symmetrical three-layer system is examined theoretically. Linear stability analysis and nonlinear numerical simulations show that the ratio of the heat diffusivities determines the nature of the instability. Monotonic disturbances exist only when this parameter is far enough from one, the motion being driven by one interface. When the heat diffusivity ratio is close to one, oscillatory convection is observed. This is explained on a physical base: the oscillation rests on the coupling of both interfaces, which creates a flip–flop mechanism leading to a double inversion of the vortices rotation during one period of oscillation.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.858834
|
Standort |
Signatur |
Erwartet |
Verfügbarkeit |
