Accession Number:

ADA050537

Title:

Investigation of a Highly Loaded Two-Stage Fan-Drive Turbine. Volume V. Phase III. Boundary Layer Control Optimization and Off-Design Evaluation.

Descriptive Note:

Technical rept. 1 Jan-30 Jun 70,

Corporate Author:

PRATT AND WHITNEY AIRCRAFT GROUP EAST HARTFORD CONN

Report Date:

1970-06-01

Pagination or Media Count:

266.0

Abstract:

A comprehensive, four-phase, three-year program is in progress to investigate methods of improving the performance of fan-drive turbines. The goals of this program are to develop turbine design procedures and aerodynamic techniques for efficient, high work, low pressure turbines. The first phase effort of defining the preliminary turbine design has been completed and the results were reported Reference 1. The second phase consisted of an experimental evaluation which included establishment of both two-dimensional loss levels and three-dimensional flow behavior for the baseline airfoils, and for airfoils utilizing various boundary layer control methods. The design of the baseline cascade packs was reported in Reference 2, and the annular cascade performance of the baseline airfoils was reported in Reference 3. The annular cascade results of the baseline airfoil boundary layer control methods were reported in Reference 4. The results of the plano-cascade, two-dimensional, baseline investigation the decreased solidity annular-cascade airfoil test results, and the Phase III boundary layer control optimization and off-design evaluation are presented in this report. Author

Subject Categories:

  • Fluid Mechanics
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE