Accession Number : ADA292777

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

Descriptive Note : Final rept. 1 Jun-31 Jul 94,

Corporate Author : CHRISTIAN BROTHERS COLL MEMPHIS TN

Personal Author(s) : Driver, Mark A.

PDF Url : ADA292777

Report Date : 28 FEB 1995

Pagination or Media Count : 69

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)

Descriptors :   *HEAT TRANSFER, *TURBULENT FLOW, *COMPUTATIONAL FLUID DYNAMICS, MATHEMATICAL MODELS, ALGORITHMS, EXPERIMENTAL DATA, COMPARISON, SHOCK WAVES, ACCURACY, FINITE DIFFERENCE THEORY, PROFILES, MATHEMATICAL PREDICTION, APPROXIMATION(MATHEMATICS), UNSTEADY FLOW, NUMERICAL METHODS AND PROCEDURES, BOUNDARY LAYER TRANSITION, HEAT FLUX, INVISCID FLOW, VISCOUS FLOW, PRESSURE DISTRIBUTION, GAS SURFACE INTERACTIONS, SKIN FRICTION, CASCADES(FLUID DYNAMICS).

Subject Categories : Fluid Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE