To calculate (and control) these small clearances for transient and steady conditions, it is necessary to determine the radial growth of the compressor discs
. This in turn requires the calculation of the transient temperatures of the discs, which involves the calculation of the buoyancy-induced rotating flow and heat transfer inside the compressor rotors.
Caption: FIGURE 3: Manufactured rotor-bearing system of the developed gas turbine: (a) compressor discs
; (b) free turbine disc; and (c) locations of the bearings.
Nine hundred and fifty employees are responsible for the manufacture of highly stressed components in aircraft engines, such as compressor discs
and drums, turbine discs with nickel-based alloys, as well as blisks with titanium alloys.