Scaling of pressure drop for oscillatory flow through a slot
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Abstract:
Reduced-order modeling and design of zero-net mass-flux actuators require an understanding of several fundamental flow mechanisms governing the performance of these devices. One such aspect is the pressure drop due to oscillatory flow through a slot. In this Brief Communication, we use numerical simulations and experiments to examine physics-based scaling laws for the various mechanisms that determine the net pressure drop, and critically evaluate a proposed phenomenological model for predicting the nonlinear component of the pressure drop in oscillatory slot flows.Keywords:
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The response of a many body system to a time dependent coupling which passes through or approaches a critical point displays universal scaling behavior. In some regimes, scaling laws have been known since the 1970's. Recently holographic techniques have been used to understand the origins of such scaling. Along the way, new scaling behaviors in other regimes have been found in holographic models, which have later been shown to hold in a generic field theory regardless of holography. This contribution summarizes recent work on these various scaling regimes.
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The response of a many-body system to a time-dependent coupling which passes through or approaches a critical point displays universal scaling behavior. In some regimes, scaling laws have been known since the 1970s. Recently, holographic techniques have been used to understand the origins of such scaling. Along the way, new scaling behaviors in other regimes have been found in holographic models, which have later been shown to hold in a generic field theory regardless of holography. This contribution summarizes recent work on these various scaling regimes.
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The response of a many body system to a time dependent coupling which passes through or approaches a critical point displays universal scaling behavior. In some regimes, scaling laws have been known since the 1970's. Recently holographic techniques have been used to understand the origins of such scaling. Along the way, new scaling behaviors in other regimes have been found in holographic models, which have later been shown to hold in a generic field theory regardless of holography. This contribution summarizes recent work on these various scaling regimes.
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