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  • Other Sources  (4)
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  • 1
    facet.materialart.
    Unknown
    Experimental investigation of a 4 and 1/2 stage turbine with very high stage loading factor. 2: Turbine performance (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The experimental test program results of a 4 1/2-stage turbine with a very high stage loading factor are presented. A four-stage turbine was tested with and without outlet turning vanes. The 4 1/2-stage turbine achieved a design point total-to-total efficiency of 0.853. The outlet turning vane design point performance was 0.4 percent of the overall 4 1/2-stage turbine efficiency. Tests were conducted at various levels of Reynolds number and indicated decreases in turbine efficiency and equivalent weight flow with decreasing Reynolds number.
    Keywords: PROPULSION SYSTEMS
    Type: NASA-CR-2363 , R73AEG163
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Highly loaded multi-stage fan drive turbine - performance of initial seven configurations (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Experimental results of a three-stage highly loaded fan drive turbine test program are presented. A plain blade turbine, a tandem blade turbine, and a tangentially leaned stator turbine were designed for the same velocity diagram and flowpath. Seven combinations of bladerows were tested to evaluate stage performances and effects of the tandem blading and leaned stator. The plain blade turbine design point total-to-total efficiency was 0.886. The turbine with the stage three leaned stator had the same efficiency with an improved exit swirl profile and increased hub reaction. Two-stage group tests showed that the two-stage turbine with tandem stage two stator had an efficiency of 0.880 compared to 0.868 for the plain blade two-stage turbine.
    Keywords: PROPULSION SYSTEMS
    Type: NASA-CR-2362 , R73AEG154
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    Highly loaded multi-stage fan drive turbine: Performance of final three configurations (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Results for a three-stage highly loaded fan drive turbine follow-on test program are presented. The effects of combinations of tandem and leaned bladerows on three-stage turbine performance were tested. The three-stage turbine with a tandem stator in stage two exhibited a total-to-total efficiency of approximately 0.887 as compared to 0.886 for the plain blade turbine base case.
    Keywords: AIRCRAFT PROPULSION AND POWER
    Type: NASA-CR-2446 , GE73AEG481
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Unknown
    Highly loaded multi-stage fan drive turbine-cascade test program (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Test results are presented for 19 cascades involving five plain and two tandem blade sections. High camber and/or negative reaction is associated with six of the sections. Exit Mach numbers range up to slightly above sonic. Cascade efficiency, exit flow angle and static pressure, and blade surface pressure data are reported with incidence angle, Mach number, solidity, and relative position of the tandem blades as independent variables.
    Keywords: PROPULSION SYSTEMS
    Type: NASA-CR-2171 , REPT-72AEG268
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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