PERFORMANCE ANALYSIS AND INITIAL TESTS OF A TRANSONIC TURBINE TEST RIG,
Abstract
The primary purpose of the Transonic Turbine Test Rig is to permit investigation of turbine performance and flow conditions for transonic rotor inlet velocities. This turbine also has provisions for investigation of the effects on performance of widely varied axial and tip chearances. High turbine total-to-total pressure ratios are achievable, since an ejector-type exhauster assembly can maintain a partial vacuum in an airtight turbine discharge hood. This study is concerned primarily with initial turbine performance tests both with and without the rotor installed. The installation is described, and results of flow rate calibration and labyrinth seal leakage tests are included along with turbine performance test results. Also presented are a simplified three dimensional turbine performance prediction and a one-dimensional analysis of exhauster performance. The turbine performance prediction method uses the so-called equivalent enthalpy (and corresponding equivalent total thermodynamic properties) to permit analysis of the relative flow through the rotor in a manner analogous to that used for absolute flows.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1966
- Accession Number
- AD0484668
Entities
People
- Richard Holvey Eckert
Organizations
- Naval Postgraduate School