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An unconditionally stable Runge-Kutta method for unsteady rotor-stator interactionA quasi-three-dimensional analysis has been developed for unsteady rotor-stator interaction in turbomachinery. The analysis solves the unsteady Euler or thin-layer Navier-Stokes equations in a body-fitted coordinate system. It accounts for the effects of rotation, radius change, and stress-surface thickness. The Baldwin-Lomax eddy-viscosity model is used for turbulent flows. The equations are integrated in time using an explicit four-stage Runge-Kutta scheme with a constant time step. Implicit residual smoothing is used to increase the stability limit of the time-accurate computations. The scheme is described, and stability and accuracy analyses are given.
Document ID
19910015024
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chima, Rodrick V. (NASA Lewis Research Center Cleveland, OH, United States)
Jorgenson, Philip C. E. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1989
Publication Information
Publication: Structural Integrity and Durability of Reusable Space Propulsion Systems
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
91N24337
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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