Design and Modeling of Turbine Airfoils with Active Flow Control in Realistic Engine Conditions

Abstract

A closely integrated experimental/numerical study of pulsed vortex generator jets (VGJs) for flow control of turbine airfoils in realistic engine conditions is proposed. This work will demonstrate integration of VGJ flow control into the design of turbine airfoils that go beyond the limits of current performance. The new L2M highly loaded blade designed by AFRL will be studied for performance both with and without VGJ flow control. Special effort is proposed to demonstrate performance in flow conditions similar to those experienced in application. Specifically, the effects of a full annulus vs. linear cascade will be examined, as will the effects of passing upstream wakes. Synchronization of pulsed VGJs with the passing wakes will be investigated in order to achieve optimal control with minimal mass flow. Implications for blade surface heat transfer will also be investigated. These efforts will aid in the integration of flow control into the blade design process, leading to innovative new designs and improved engine performance.

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Document Details

Document Type
Technical Report
Publication Date
Aug 20, 2007
Accession Number
AD1026346

Entities

People

  • Jeffrey P. Bons
  • Jen-ping Chen

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Control
  • Boundary Layer Transition
  • Computational Fluid Dynamics
  • Engines
  • Fluid Dynamics
  • Fluid Flow
  • Gas Turbines
  • Generators
  • Heat Transfer
  • Reynolds Number
  • Three Dimensional
  • Turbine Components
  • Turbines
  • Two Dimensional
  • Vortex Generators
  • Vortices

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Enterprise Information Systems Architecture and Joint Command Capability Interoperability Support.
  • Fluid Mechanics and Fluid Dynamics.