TY  - EJOU
AU  - Podolny, A.  
AU  - Nepomnyashchy, A.  
AU  - Oron, A.  

TI  - Rayleigh-Marangoni Instability of Binary Fluids with Small Lewis Number and Nano-Fluids in the Presence of the Soret Effect
T2  - Fluid Dynamics \& Materials Processing

PY  - 2010
VL  - 6
IS  - 1
SN  - 1555-2578

AB  - A general model for two-component transport phenomena applicable for both nanofluids and binary solutions is formulated. We investigate a combined long-wave Marangoni and Rayleigh instability of a quiescent state of a binary (nano-) liquid layer with a non-deformable free surface. The layer is heated from below or from above. The concentration gradient is induced due to the Soret effect. A typical behavior of monotonic and oscillatory instability boundaries is examined in the limit of asymptotically small Lewis numbers and poorly conducting boundaries in the two important long-wave domains k~Bi1/2and k~Bi1/4.
KW  - nanofluids
KW  -  Marangoni convection
KW  -  Rayleigh convection
KW  -  Soret effect

DO  - 10.3970/fdmp.2010.006.013