DNS Studies of Transitional Hypersonic Reacting Flows Over 3-D Hypersonic Vehicles

Abstract

The objectives of this research project are to develop CFD techniques and to conduct DNS studies of fundamental flow physics leading to boundary-layer instability and transition in hypersonic flows During the three-year period, we have conducted extensive DNS studies on the receptivity of a supersonic boundary layer over a blunt cone, and over both sharp and blunt leading edge; and on the receptivity of the Goertler vortices. DNS studies were also compared with Stetson's 1984 stability experiment on Mach 7.99 flow over a blunt cone. Our studies have led to new understanding of a number of hypersonic boundary layer receptivity mechanisms. Such understanding can lead to better tool for the prediction and control of high-speed boundary layer transition.

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Document Details

Document Type
Technical Report
Publication Date
Mar 05, 2003
Accession Number
ADA413149

Entities

People

  • Xiaolin Zhong

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Control
  • Boundary Layer Flow
  • Boundary Layer Transition
  • Computational Fluid Dynamics
  • Computational Science
  • Flow
  • Fluid Dynamics
  • Fluid Mechanics
  • Hydrodynamics
  • Hypersonic Flow
  • Leading Edges
  • Mechanics
  • Reynolds Number
  • Steady Flow
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers