Heat transfer in stepped labyrinth seals
Abstract
Leakage flow and heat transfer of scaled-up stepped labyrinth seals were investigated experimentally and numerically. The experiments were conducted in a test rig under steady conditions. For different geometries and pressure ratios, a finite element program was used to determine the temperature distribution and subsequently the heat transfer coefficients. In verifying the experimental results, the flow field of the seals was calculated numerically by a finite difference program. Heat transfer coefficients were derived utilizing the well-known analogies between heat transfer and wall friction.
- Publication:
-
32nd International Gas Turbine Conference and Exhibition
- Pub Date:
- May 1987
- Bibcode:
- 1987gatu.confR....W
- Keywords:
-
- Computational Fluid Dynamics;
- Heat Transfer Coefficients;
- Labyrinth Seals;
- Leakage;
- Performance Tests;
- Finite Element Method;
- Friction Factor;
- Steps;
- Temperature Distribution;
- Test Stands;
- Wall Flow;
- Fluid Mechanics and Heat Transfer