Coupled parametric design of flow control and duct shape

Details Coupled parametric design of flow control and duct shape Coupled parametric design of flow control and duct shape

2004-09-24

2009-10-27

Rodriguez, Paul L (Department: 2123)

Data processing: structural design, modeling, simulation, and em

Structural design

C703S007000

Reexamination Certificate

active

07610179

ABSTRACT:
A method for designing gas turbine engine components using a coupled parametric analysis of part geometry and flow control is disclosed. Included are the steps of parametrically defining the geometry of the duct wall shape, parametrically defining one or more flow control actuators in the duct wall, measuring a plurality of performance parameters or metrics (e.g., flow characteristics) of the duct and comparing the results of the measurement with desired or target parameters, and selecting the optimal duct geometry and flow control for at least a portion of the duct, the selection process including evaluating the plurality of performance metrics in a pareto analysis. The use of this method in the design of inter-turbine transition ducts, serpentine ducts, inlets, diffusers, and similar components provides a design which reduces pressure losses and flow profile distortions.

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Florea et al., Feb. 19, 2003, “Flow Parametric Design of Turbine Transition Ducts Using Flow Control”, NASA Gelen Research Center. i-102.

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