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Numerical simulation of a plasma actuator based on ion transport
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10.1063/1.4809975
/content/aip/journal/jap/113/24/10.1063/1.4809975
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/24/10.1063/1.4809975

Figures

Image of FIG. 1.
FIG. 1.

Structure of a SDBD-PA.

Image of FIG. 2.
FIG. 2.

Photograph of the plasma discharge.

Image of FIG. 3.
FIG. 3.

Difference in among different sinusoidal signals.

Image of FIG. 4.
FIG. 4.

Computational domain used in the simulation of ion transport.

Image of FIG. 5.
FIG. 5.

Voltage signals () applied over one period (see Table I for descriptions of cases 1-6).

Image of FIG. 6.
FIG. 6.

Computational domain for flow simulation.

Image of FIG. 7.
FIG. 7.

Streamlines and velocity profile of cavity flow at  = 1000.

Image of FIG. 8.
FIG. 8.

Instantaneous snapshots at  = 0.10: (a) voltage signal (marker indicates  = 0.10); (b) body force vectors ; (c) profiles of body force components and at different locations; (d) number density distribution .

Image of FIG. 9.
FIG. 9.

Instantaneous snapshots at  = 0.40: (a) voltage signal (marker indicates  = 0.40); (b) body force vector ; (c) profiles of body force components and at different locations; (d) number density distribution .

Image of FIG. 10.
FIG. 10.

Instantaneous snapshots at  = 0.80: (a) voltage signal (marker indicates  = 0.80); (b) body force vector ; (c) profiles of body force components and at different locations; (d) number density distribution .

Image of FIG. 11.
FIG. 11.

Time-averaged body force field in case 3 ( = 320 V/s).

Image of FIG. 12.
FIG. 12.

Domain-averaged body force, , as functions of time (see Table I for descriptions of cases 1-6).

Image of FIG. 13.
FIG. 13.

Relationship between and time-averaged domain-averaged body force (per unit volume), .

Image of FIG. 14.
FIG. 14.

Typical instantaneous streamlines and location of check points.

Image of FIG. 15.
FIG. 15.

Time trace of obtained with the time-averaged model at  = 5000 Hz.

Image of FIG. 16.
FIG. 16.

Comparison of between the time-averaged model and the time-resolved model at  = 5000 Hz: (b) is a zoom-up view in the time period circled in (a).

Image of FIG. 17.
FIG. 17.

Comparison of between the time-averaged model and the time-resolved model at  = 5000 Hz: (b) is a zoom-up view in the time period circled in (a).

Image of FIG. 18.
FIG. 18.

Comparisons of PSD between the time-averaged model and the time-resolved model at  = 5000 Hz: (a) ; (b) .

Image of FIG. 19.
FIG. 19.

Vorticity distributions obtained in numerical experiments assuming different driving frequencies : (a)  = 50 Hz; (b)  = 100 Hz; (c)  = 200 Hz; (d) = 500 Hz; (e)  = 5000 Hz; (f) the time-averaged model.

Image of FIG. 20.
FIG. 20.

Comparisons of PSD of wall-normal velocity at check point 5 ( ) between the time-averaged model and the time-resolved model: (a)  = 200 Hz; (b) = 500 Hz.

Tables

Generic image for table
Table I.

Test cases.

Generic image for table
Table II.

Constants (for air) used in the present simulations.

Generic image for table
Table III.

Location of check point.

Generic image for table
Table IV.

Ratio of powers at the driving frequency ( = 5000 Hz) and the flow oscillation frequency ( = 15 Hz), /, and relative difference of powers at  = 15 Hz between the time-averaged and time-resolved models, , at different check points.

Generic image for table
Table V.

Ratio of powers at the driving frequency ( = 200 Hz) and the flow oscillation frequency ( = 15 Hz), /, and relative difference of powers at  = 15 Hz between the time-averaged and time-resolved models, , at different check points.

Generic image for table
Table VI.

Ratio of powers at the driving frequency ( = 500 Hz) and the flow oscillation frequency ( = 15 Hz), /, and relative difference of powers at  = 15 Hz between the time-averaged and time-resolved models, , at different check points.

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/content/aip/journal/jap/113/24/10.1063/1.4809975
2013-06-26
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Numerical simulation of a plasma actuator based on ion transport
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/24/10.1063/1.4809975
10.1063/1.4809975
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