Stability analysis of surface tension effects on a double-diffusive layerThe linear stability characteristics of a fluid layer with simultaneous temperature and concentration gradients in a reduced gravity field are examined. The surface tension of the fluid is assumed to be a linear function of temperature and concentration. It is concluded that a small amount of gravity may damp out oscillatory instability or may alter its dynamics so that instability appears as steady convection. The onset of salt-finger instability may be in the overstable mode due to the surface tension method. The Lewis and Prandtl numbers of the material have a strong influence on the stability boundaries and onset characteristics of the system.
Document ID
19920044378
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chen, C. F. (NASA Lewis Research Center Cleveland, OH, United States)
Su, T. F. (Arizona, University Tucson, United States)