9 THD model GFB with cooling flows (inner and/or outer) Outer flow stream Top foil Bearing housing Bump layer z x P Co, T Co X Y Z Bearing housing P Ci, T Ci Inner flow stream ΩR So Hollow shaft PaPa Thin film flow z=0z=L T∞T∞ Convection of heat by fluid flow + diffusion to bounding surfaces = compression work + dissipated energy Bulk-flow temperature transport equation
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