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Can I read The Effect of Streamwise Vortices on the Turbulence Structure of a Separating Boundary Layer on EtoBox?
The Effect of Streamwise Vortices on the Turbulence Structure of a Separating Boundary Layer by K.P. Angele; B. Muhammad-Klingmann is a Engineering article available to read on EtoBox.
What is The Effect of Streamwise Vortices on the Turbulence Structure of a Separating Boundary Layer about?
A high Reynolds number flat plate turbulent boundary layer is investigated in a wind-tunnel experiment. The flow is subjected to an adverse pressure gradient which is strong enough to generate a weak separation bubble. This experimental study attempts to shed some new light on separation control by means of streamwise vortices with emphasize on the change in the boundary layer turbulence structure. In the present case, counter-rotating and initially non-equidistant streamwise vortices become and remain equidistant and confined within the boundary layer, contradictory to the prediction by inviscid theory. The viscous diffusion cause the vortices to grow, the swirling velocity component to decrease and the boundary layer to develop towards a two-dimensional state. At the position of the eliminated separation bubble the following changes in the turbulence structure were observed. The anisotropy state in the near-wall region is unchanged, which indicates that it is determined by the presence of the wall rather than the large scale vortices. However, the turbulence in the outer part of the boundary layer becomes overall more isotropic due to an increased wall-normal mixing and a signifi
Who reads The Effect of Streamwise Vortices on the Turbulence Structure of a Separating Boundary Layer?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- K.P. Angele; B. Muhammad-Klingmann
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0997-7546)
- Published
- 2005
- Language
- EN
- Field
- Engineering (Physical Sciences)