Continued Computational Investigation of MEMS - Hybrid Surfaces

Abstract

Flow control may be achieved by using MEMS to alter the fine scale flow structures within a boundary layer. We here report on a detailed direct numerical simulation of slot jet MEMS for the purpose of flow control. Individual pulses were aimed at specific boundary layer structures, or were created in a flow "combed" by riblets. A feedback control method is also studied and used to calibrate the strength of actuation to match flow conditions. This final report, on a one-year project funded between two longer term related projects, describes a few conclusive findings as well as work in progress.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2001
Accession Number
ADA415977

Entities

People

  • David B. Goldstein

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Actuators
  • Boundaries
  • Boundary Layer
  • Boundary Layer Control
  • Control Systems
  • Drag
  • Drag Reduction
  • Engineering
  • Flow
  • Hypervelocity Flow
  • Layers
  • Mechanics
  • Microelectromechanical Systems
  • Shear Stresses
  • Simulations
  • Turbulent Boundary Layer

Readers

  • Computational Modeling and Simulation
  • Fluid Mechanics and Fluid Dynamics.
  • Integrated Circuit Design and Technology.