Examination of Flow Dynamics and Passive Cooling in an Ultra Compact Combustor

Abstract

The Ultra Compact Combustor (UCC) promises to greatly reduce the size of a gas turbine engines combustor by burning fuel circumferentially. This design employs a combustor center body that changes the flow path angle. The first goal of the present investigation was to experimentally evaluate five cooling configurations to quantify the impact of internal geometry and film-cooling on the body's surface temperature distribution. The second goal of this investigation was to understand the complex airflow and combustion dynamics that resulted in the hottest combustor exit temperatures. Prior studies have determined what UCC operating conditions created the highest exit temperatures, but not why.

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Document Details

Document Type
Technical Report
Publication Date
Mar 21, 2019
Accession Number
AD1074068

Entities

People

  • Tylor C Rathsack

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Additive Manufacturing
  • Air Force
  • Boundary Layer
  • Chemical Reactions
  • Chemistry
  • Climate Change
  • Combustion
  • Combustion Products
  • Computational Fluid Dynamics
  • Digital Data
  • Dynamics
  • Electromagnetic Radiation
  • Engineering
  • Engines
  • Fabrication
  • Film Cooling
  • Flow Fields
  • Flow Rate
  • Fluid Dynamics
  • Gas Turbines
  • Geometry
  • Guide Vanes
  • Heat Transfer
  • Ignition
  • Internal Pressure
  • Manufacturing
  • Measurement
  • Pressure Distribution
  • Surface Temperature
  • Turbines
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Internal Combustion Engine (ICE) Technology.