A method is presented that computes the conjugate heat transfer proble
m using a hybrid overset grid system. The hybrid grids for the fluid a
nd solid structure regions use Chimera overset structured grids and un
structured grids, respectively. The numerical analyses require the flo
wfield solution and material thermal response to be obtained simultane
ously. A continuous transfer of temperature and heat flux is enforced
at the interface, which combines the solid structure and the fluid dow
regions into an integral system. Numerical results are compared with
analytical and experimental data for a flat plate and a C3X cooled tur
bine cascade. A simplified drum-disk system is also simulated to show
the effectiveness of this hybrid grid system.