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Transitional Boundary-Layer Solutions Using a Mixing-Length and a Two-Equation Turbulence Model

Author:
Wilcox, D. C.
Published:
April 1, 1978.
Physical Description:
1 electronic document
Additional Creators:
Anderson, E. C.
Online Version

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Summary:
Boundary-layer solutions were obtained using the conventional two-layer mixing-length turbulence model and the Wilcox-Traci two-equation model of turbulence. Both flatplate and blunt-body geometries were considered. The most significant result of the study is development of approximations for the two-equation model which permit streamwise stepsize comparable to that used in mixing-length computations. Additionally, a set of model-equation boundary conditions derived which apply equally well to both flat-plate and blunt-body geometries. Solutions obtained with the two-equations turbulence model are compared with experimental data and/or corresponding solutions obtained using the mixing-length model. Agreement is satisfactory for flat-plate boundary layers but not for blunt body boundary layers.
Other Subject(s):
Collection:
NASA Technical Reports Server (NTRS) Collection.
Note:
Document ID: 19780014387.
Accession ID: 78N22330.
NASA-CR-2986.
Terms of Use and Reproduction:
No Copyright.
View MARC record | catkey: 15729072