Distributed Blowing and Suction for the Purpose of Streak Control in a Boundary Layer Subjected to a Favorable Pressure Gradient | Zendy

Eric Forgoston | Zendy; Anatoli Tumin | Zendy; David E. Ashpis | Zendy

Open Access

Distributed Blowing and Suction for the Purpose of Streak Control in a Boundary Layer Subjected to a Favorable Pressure Gradient

Author(s) -

Eric Forgoston,

Anatoli Tumin,

David E. Ashpis

Publication year - 2005

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2005-5195

Subject(s) - streak , suction , boundary layer , pressure gradient , boundary layer suction , mechanics , boundary layer control , layer (electronics) , materials science , pressure control , boundary (topology) , adverse pressure gradient , aerospace engineering , boundary layer thickness , physics , flow separation , mechanical engineering , composite material , meteorology , optics , engineering , mathematics , mathematical analysis

An analysis of the optimal control by blowing and suction in order to generate streamwise velocity streaks is presented. The problem is examined using an iterative process that employs the Parabolized Stability Equations for an incompressible ∞uid along with its adjoint equations. In particular, distributions of blowing and suction are computed for both the normal and tangential velocity perturbations for various choices of parameters.

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