Wall Model Large Eddy Simulation of a Diffusing Serpentine Inlet Duct

Abstract

Accurate modeling predictions of an S-duct are needed to reduce costly testing and accelerate development time while characterizing the flow following the inlet. While DNS is too cost prohibitive due to grid scaling with Reynolds number, WM-LES remains a tractable alternative. The use of higher order numerical models on a fully structured grid in US3D were assessed using DDES and WM-LES turbulence models to obtain increased prediction accuracy of the S-duct flow when compared to previous studies and test data. Further, a first of its kind dynamic Vreman model was derived, implemented, and validated in US3D using a flat plate model.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2019
Accession Number
AD1076363

Entities

People

  • Ryan J. Thompson

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Heat Transfer
  • Hydrodynamics
  • Large Eddy Simulation
  • Mathematical Models
  • Pressure Distribution
  • Secondary Flow
  • Turbulent Flow
  • Turbulent Mixing
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Computational Fluid Dynamics (CFD)