Estimation of Time Dependent Properties from Surface Pressure in Open Cavities

Abstract

The intense fluctuating pressures observed in open cavities are extremely detrimental hence the ability to control the flow to minimize them is an important challenge. Many open loop methodologies have proven effective at this for single operating conditions, however they often are detrimental at off design conditions. Closed loop flow control is applicable over a range of flow conditions and is the thrust of many current and past studies. However in order to advance its effectiveness there is a need for a better understanding of the flow physics and the effect that control has on it. This study represents a step in the direction of developing the tools that will allow for a better understanding of this flow physics along with an improvement adaptive control methodologies.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2008
Accession Number
ADA500051

Entities

People

  • George Shumway
  • Lawrence S Ukeiley
  • Louis N Cattafesta
  • Terry Song

Organizations

  • University of Florida

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Properties
  • Acoustics
  • Boundary Layer
  • Computational Fluid Dynamics
  • Control Systems
  • Convection
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Hydrodynamics
  • Hypervelocity Flow
  • Pressure Distribution
  • Pressure Measurement
  • Three Dimensional
  • Turbulent Flow
  • Turbulent Mixing
  • Two Dimensional

Readers

  • Combustion and Flow Dynamics.
  • Systems Analysis and Design