Transitional Boundary-Layer Solutions Using a Mixing-Length and a Two-Equation Turbulence Model
- Wilcox, D. C.
- April 1, 1978.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Anderson, E. C.
- hdl.handle.net , Connect to this object online.
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- Unclassified, Unlimited, Publicly available.
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- 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):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19780014387.
Accession ID: 78N22330.
- No Copyright.
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