Results are presented for an experimental study of fluid flow in models of gas turbine disk cavities. Experiments were performed on 70-cm-dia disks for rotational Reynolds numbers up to 2.29 × 106. Velocity and pressure distributions are presented and compared to previous theoretical and experimental studies for a free disk, and an unshrouded plane Rotor–Stator disk system. Minimum coolant flow rates for the prevention of ingress, determined for the case of a simple axial rim seal, compare well with previously published data.
Issue Section:
Research Papers
Topics:
Cavities,
Disks,
Fluid dynamics,
Coolants,
Flow (Dynamics),
Gas turbines,
Pressure,
Reynolds number,
Rotors,
Stators
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Copyright © 1992
by The American Society of Mechanical Engineers
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