The objective of the present study is to investigate the flow stability of
mixed convection in non-isothermal rotating fluids between a rotating disk
and a stationary one. The buoyancy effects stemmed from the rotational forc
es, including centrifugal and Coriolis, are taken into account. A similarit
y model of thermal flow, with the assumption, of Boussinesq fluids is formu
lated for generating axially symmetric solutions of the basic state. Distur
bance equations are derived by using the concept of small perturbation of n
ormal mode expressions, and then solved by the Chebyshev collocation spectr
al method. The influences of the rotation-induced buoyancy effects and the
rotational conditions on the flow stability characteristics of the two-disk
rotating fluid motion are explored. The present results disclose the mecha
nisms and the significance of the rotation-induced buoyancy on flow stabili
ty characteristics of the non-isothermal fluids in the rotor-stator disk sy
stems.