RESUMEN
The combined effect of rotation and heating on
the thermal stability of flow in a porous medium is studied when the
temperatures involved are large for radiative heat
transfer to be significant. The porous medium is confined between two rotating
cylinders and both the angular velocity and temperature of the inner cylinder
are higher than those of the outer. Hence instability can set in either as a
result of unfavorable distribution of thermal gradient or angular momentum
gradient. In this study rotational instability sets in first, under normal
conditions, and this can be contrasted with the case in which radiative heat transfer is absent and thermal instability
is more fatal.