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Navier-Stokes simulation of the crossflow instability in swept-wing flowsThe computational modeling of the transition process characteristic of flows over swept wings are described. Specifically, the crossflow instability and crossflow/T-S wave interactions are analyzed through the numerical solution of the full three-dimensional Navier-Stokes equations including unsteadiness, curvature, and sweep. This approach is chosen because of the complexity of the problem and because it appears that linear stability theory is insufficient to explain the discrepancies between different experiments and between theory and experiments. The leading edge region of a swept wing is considered in a three-dimensional spatial simulation with random disturbances as the initial conditions. The work has been closely coordinated with the experimental program of Professor William Saric, examining the same problem. Comparisons with NASA flight test data and the experiments at Arizona State University were a necessary and an important integral part of this work.
Document ID
19900004428
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Reed, Helen L. (Arizona State Univ. Tempe, AZ, United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1989
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NASA-CR-186122
NAS 1.26:186122
Accession Number
90N13744
Funding Number(s)
CONTRACT_GRANT: NAG1-874
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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