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- Title
How Flow Becomes Turbulent.
- Authors
Chen, J. C.; Chen Weijia
- Abstract
Sub-harmonic resonance in zero pressure gradient three-dimensional boundary layer flow occurs in the classical N-type pathway of turbulence transition. Three-dimensionality incurs exorbitant computational demands on the numerical simulations. Imposition of a spectral method and a non-uniform grid countervails the impractical computational demands. Eigenvalue analysis ascertains ranges of stability of the numerical method. Validation of the numerical method versus the three-dimensional OS equation avers confidence in the accuracy of the model. Numerical realizations of the generation, amplification, and interaction of two- and three-dimensional sub-harmonic waves agree qualitatively with classical experiments.
- Subjects
BOUNDARY layer (Aerodynamics); NUMERICAL analysis; TURBULENCE; RESONANCE; PRESSURE; COMPUTER simulation; EIGENVALUES
- Publication
IAENG International Journal of Applied Mathematics, 2012, Vol 42, Issue 2, p99
- ISSN
1992-9978
- Publication type
Article