Liner and cavity flow oscillation control
Modeling, simulation, and control of cavity flow oscillations
... of Cavity Oscillations The model-reduction techniques discussed in the previous chapter are particularly well suited to cavity ...of cavity flows is relatively simple, and exhibits qualitative ...
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Numerical Simulation of Flow over an Open Cavity with Self Sustained Oscillation Mode Switching
... the cavity model and the cav- ity flow is illustrated in Figure 1 where the length and the depth of the cavity are L and D, ...respectively. Cavity flow is of interest, because the ...
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The effects of scaling and high subsonic cavity flow and control
... that cavity A has the maximum reduction in u while cavity C has the minimum ...of flow oscillations in the cavities with the use of spoilers (see Figures ...for cavity B where a ...a ...
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Active Control of Subsonic Cavity Flow Using Plasma Actuators
... the cavity flow and to improve the operability of the actuators by producing stronger arcs and allowing longer running times without having to repaint the ...
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Streamwise and spanwise plasma actuators for flow-induced cavity noise control
... local flow field was investigated using a particle image velocimetry 共PIV兲 system that measures two-dimensional velocity ...the flow using a Safex S195G smoke seeder by Marin ...the flow field on the ...
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Flow-induced vibration in the compressible cavity flow
... The cavity plays an important role in the fuel-air mixing and combustion stability inside the hypersonic ...supersonic cavity flow can cause intense structural vibration even ...a cavity was ...
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Cavity flow noise predictions
... 2-D cavity flow simulation on an SGI Origin-3000 ...steady flow profile at the inflow boundary was obtained from a turbulent flat plate computation and the turbulent boundary thickness was set at ...
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Active flow control of a two-dimensional compressible cavity flow using direct output feedback law
... the flow configurations of practical interest, the range of spatial and temporal scales in strong interaction is so large that an accurate analysis and computation require a huge number of degrees of ...
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Numerical Simulation of Flow over an Airfoil with a Cavity
... the cavity, and the shear layer oscillates ...the cavity and starts to display the more violent first shear-layer mode ...the cavity settles down and displays a flow similar to the positive angles of ...
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Lid Driven Cavity Flow OK Final Eldwin
... Explicit upwind scheme with finite difference approach was finally chosen to solve the set of equations. The form of the discretized governing equations remains the same ex cept for the boundary. The boundary condition ...
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Cold Cavity Flow with a
... expansion wave at the leading edge, flow separation, flow recirculation inside the cavity, reattachment of free shear layer at the slant wall and the trailing edge [r] ...
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Rotational oscillation of a cylinder in air flow
... the oscillation frequency does not depend on the velocity of the ...of flow in the test section, the oscillations of the cylinders on the elastic suspension were damped, and the oscillation frequency ...
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Closed-loop control of an open cavity flow using reduced-order models
... The eigenvalues of the reduced-order model based on BPOD modes The ability of reduced-order models based on BPOD modes to capture the input– output behaviour, as demonstrated above by co[r] ...
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Flow Modelling Of Nasal Cavity With Various Flow Rate
... Nasal cavity is one of the organs in the human respiration system. Nasal cavity acts as the air flow passage for human ventilation and ...nasal cavity can change the flow behaviour and ...
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Numerical simulation of a turbulent channel flow with an acoustic liner
... channel flow with an acoustic impedance boundary condition are performed to assess how the flow is modi- fied compared with a channel flow with rigid ...the liner resonance frequency is not ...
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Biomagnetic Fluid Flow in a Driven Cavity
... Development of bio- magnetic fluid dynamics, In Proceedings of the IX International Symposium on Transport Properties in Thermal Fluids Engineering, Singapore, Pacific Center of Thermal [r] ...
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Influence of cavity flow on turbine aerodynamics
... Turbomachinery is widely used for electrical power generation mechanical drive and aviation industries. Any efficiency improvement can have a significant impact on overall fuel consumption and global emission. The ...
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Coherent Control in Cavity QED
... the cavity output is collimated, and an angle-tuned mirror sepa- rates the 836 nm light for the cavity ...the cavity output, which causes light at the two wavelengths ...
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Effects of rarefaction on cavity flow in the slip regime
... slip- flow regime where the onset of nonequilibrium effects are usually ...driven cavity are generally in good agreement with the Monte Carlo data, there is some indication that the results are starting to ...
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Lecture 16 Lid driven cavity flow
... Explicit artificial compressibility method Pressure Poisson equation based method MAC scheme for unsteady flows. Derive a Poisson equation after discretizing the flow equations[r] ...
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