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    기술보고서 게시판 내용
    타이틀 Unsteady Aero Computation of a 1 1/2 Stage Large Scale Rotating Turbine
    저자 To, Wai-Ming
    Keyword AERODYNAMICS;; COMPUTATIONAL FLUID DYNAMICS;; GRID GENERATION (MATHEMATICS); ROTARY WINGS;; ROTATION;; SIMULATION;; TURBINES
    URL http://hdl.handle.net/2060/20120008555
    보고서번호 NASA/CR-2012-217438
    발행년도 2012
    출처 NTRS (NASA Technical Report Server)
    ABSTRACT This report is the documentation of the work performed for the Subsonic Rotary Wing Project under the NASA s Fundamental Aeronautics Program. It was funded through Task Number NNC10E420T under GESS-2 Contract NNC06BA07B in the period of 10/1/2010 to 8/31/2011. The objective of the task is to provide support for the development of variable speed power turbine technology through application of computational fluid dynamics analyses. This includes work elements in mesh generation, multistage URANS simulations, and post-processing of the simulation results for comparison with the experimental data. The unsteady CFD calculations were performed with the TURBO code running in multistage single passage (phase lag) mode. Meshes for the blade rows were generated with the NASA developed TCGRID code. The CFD performance is assessed and improvements are recommended for future research in this area. For that, the United Technologies Research Center''s 1 1/2 stage Large Scale Rotating Turbine was selected to be the candidate engine configuration for this computational effort because of the completeness and availability of the data.

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