Hydrodynamic Stability of a Chemically Reacting Fluid in a Porous Medium

摘要

The onset of instability occasioned by mass concentration gradient in a porous medium is investigated within the realms of hydrodynamic stability. It is established that as the permeability of the medium decreases, the Rayleigh number for onset of instability rises linearly over a wide range of values of permeability. Thus, even though porosity increases stability, the critical Rayleigh number for onset of instability is within accessible range and turbulence could occur in ground fluid hydrology. (author). 3 refs, 1 fig., 1 tab. (Atomindex citation 19:051133)