Improved Modeling of Unsteady Heat Transfer (The First Step).

Abstract

Application of Total Variation Diminishing (TVD) schemes to turbulent flows is considered. The mathematical and physical basis of TVD schemes is discussed. TVD methodology is extended to the solution of turbulent flow problems. A first-order time accurate, second-order space accurate algorithm is used to compute solutions to the problems of shock-boundary-layer interaction, turbine rotor cascade flow, and unsteady, shock-induced heat transfer using the TVD algorithm. This algorithm provides the capability to accurately predict separation, reattachment and pressure and skin friction profiles for shock-boundary-layer inter action. Improved accuracy is demonstrated in computing surface pressures for a turbine rotor cascade. Heat transfer for the cascade is predicted with fair accuracy, showing all the significant features of the experimental Stanton number profile. Fairly accurate comparison with theory and experiment is evident in the unsteady solutions. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Feb 28, 1995
Accession Number
ADA292777

Entities

People

  • Mark A. Driver

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Euler Equations
  • Flow
  • Fluid Flow
  • Heat Transfer
  • Layers
  • Navier Stokes Equations
  • Pressure Distribution
  • Skin Friction
  • Steady State
  • Turbines
  • Turbulent Flow
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Computational Fluid Dynamics (CFD)
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster