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Microflaps

The research presented opens a new area for flow control in combustion systems — mixing by active feedback control. Considered herein is a two-dimensional (2D) jet, and simple control strategies are proposed that, with small control effort, generate a large increase in turbulent kinetic energy of the jet flow. The control is applied by microjets or microflaps at the lip of the jet and requires only the meeisurement of pressure at the jet lip. It is demonstrated that the controller enhances mixing of massless particles, particles with mass, and a passive scalar. [Pg.87]

The momentum injection actuators act like a source of momentum to the flow. One popular approach in this category is blowing. The other popular actuator in this category which does not require any fluid supply is the synthetic jet. The moving surface actuators provide motion of the wall beneath the flow. These actuators inject momentum to the flow by modification of the surface boundary condition. They introduce localized boundary layer disturbances. Hap acmator and balloon actuator belong to the moving surface actuators. The fabrication procedure of microsynthetic jet, microbaUoon, and microflap actuators is established in literature. The practical applications of these actuators have been demonstrated. The present study discusses the details of... [Pg.3376]

The physical configuration and the microfabrication procedure of microsynthetic jet, microbaUoon, and microflap actuators are discussed in this section. [Pg.3376]

Turbulence Control (Microflap, MicrobaUoon, Microsynthetic Jet), Fig. 2 Schematic of synthetic actuator with (top) ingestion and bottom) expulsion phase... [Pg.3376]

The operational characteristics and salient examples of microsynthetic jet, microballoon, and microflap applications have been discussed in the following sections. [Pg.3380]

Liu et al. [2] investigated the effect of microflap actuator on a delta wing airfoil. The flap was 400 pm long and 100 pm wide. The calibration... [Pg.3382]

Turbulence Control (Microflap, Microballoon, Micros)uithetic Jet)... [Pg.1376]

See other pages where Microflaps is mentioned: [Pg.88]    [Pg.1854]    [Pg.1854]    [Pg.1855]    [Pg.1855]    [Pg.1855]    [Pg.1855]    [Pg.2150]    [Pg.3373]    [Pg.3373]    [Pg.3374]    [Pg.3375]    [Pg.3375]    [Pg.3376]    [Pg.3376]    [Pg.3377]    [Pg.3378]    [Pg.3378]    [Pg.3379]    [Pg.3379]    [Pg.3380]    [Pg.3381]    [Pg.3382]    [Pg.3382]    [Pg.3382]    [Pg.3383]    [Pg.3383]    [Pg.696]    [Pg.696]    [Pg.1135]    [Pg.1135]    [Pg.1135]    [Pg.1135]    [Pg.1135]    [Pg.1136]    [Pg.2111]    [Pg.2111]    [Pg.2112]   
See also in sourсe #XX -- [ Pg.1135 ]



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Turbulence Control (Microflap, Microballoon

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