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Turbulent transport modeling of shear flows around an aerodynamic wing. Development of turbulent near-wall model and its application to recirculating flowsProgress in implementing and refining two near-wall turbulence models in which the near-wall region is divided into either two or three zones is outlined. These models were successfully applied to the computation of recirculating flows. The research was further extended to obtaining experimental results of two different recirculating flow conditions in order to check the validity of the present models. Two different experimental apparatuses were set up: axisymmetric turbulent impinging jets on a flat plate, and turbulent flows in a circular pipe with a abrupt pipe expansion. It is shown that generally better results are obtained by using the present near-wall models, and among the models the three-zone model is superior to the two-zone model.
Document ID
19830005798
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Amano, R. S. (Wisconsin Univ. Milwaukee, WI, United States)
Date Acquired
September 4, 2013
Publication Date
December 27, 1982
Subject Category
Aerodynamics
Report/Patent Number
NAS 1.26:169665
NASA-CR-169665
SAPR-1
Accession Number
83N14069
Funding Number(s)
CONTRACT_GRANT: NAG2-160
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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