Numerical Study of Subcritical Flow With Fluid Injection
It is suggested that the study of synthetic flows, where controlled experiments can be performed, is useful in understanding turbulent flow structures. The early states of formation of hairpin structures in shear flows and the subsequent evolution of these structures is studied through numerical simulations, by developing full-time dependant three-dimensional flow solution of an initially laminar (subcritical) flow in which injection of fluid through a narrow streamwise slot from the bottom wall of a plate is carried out. Details of the numerical approach and significance of the present findings are reported in this work.
KeywordsTurbulent Boundary Layer Fluid Injection Velocity Contour Spectral Element Method Turbulent Channel Flow
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