Active control of compressible flows on a curved surface

Lucio Maestrello; Alvin Bayliss; Paresh Parikh; Eli Turkel

doi:10.4271/851856

Active control of compressible flows on a curved surface

Lucio Maestrello, Alvin Bayliss, Paresh Parikh, Eli Turkel

School of Mathematical Sciences

Research output: Contribution to journal › Conference article › peer-review

Abstract

We consider the effect of Localized, time-periodic surface heating and cooling over a curved surface. This is a mechanism for the active control of unstable disturbances by phase cancellation and reinforcement. It is shown that the pressure gradient induced by the curvature significantly enhances the effectiveness of this form of active control. In particular, by appropriate choice of phase, active surface heating can completely stabilize an unstable wave.

Original language	English
Journal	SAE Technical Papers
DOIs	https://doi.org/10.4271/851856
State	Published - 1985
Event	Aerospace Technology Conference and Exposition - Long Beach, CA, United States Duration: 14 Oct 1985 → 17 Oct 1985

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title = "Active control of compressible flows on a curved surface",

abstract = "We consider the effect of Localized, time-periodic surface heating and cooling over a curved surface. This is a mechanism for the active control of unstable disturbances by phase cancellation and reinforcement. It is shown that the pressure gradient induced by the curvature significantly enhances the effectiveness of this form of active control. In particular, by appropriate choice of phase, active surface heating can completely stabilize an unstable wave.",

author = "Lucio Maestrello and Alvin Bayliss and Paresh Parikh and Eli Turkel",

year = "1985",

doi = "10.4271/851856",

language = "אנגלית",

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AU - Maestrello, Lucio

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AU - Parikh, Paresh

AU - Turkel, Eli

PY - 1985

Y1 - 1985

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AB - We consider the effect of Localized, time-periodic surface heating and cooling over a curved surface. This is a mechanism for the active control of unstable disturbances by phase cancellation and reinforcement. It is shown that the pressure gradient induced by the curvature significantly enhances the effectiveness of this form of active control. In particular, by appropriate choice of phase, active surface heating can completely stabilize an unstable wave.

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Y2 - 14 October 1985 through 17 October 1985

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Active control of compressible flows on a curved surface

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