Accession Number:

ADA067423

Title:

Calculation of Skin Friction in Two-Dimensional, Transonic, Turbulent Flow

Descriptive Note:

Final rept. Oct 1977-Sep 1978

Corporate Author:

ARO INC ARNOLD AFS TN

Personal Author(s):

• Swafford, T. W.

Report Date:

1979-04-01

Pagination or Media Count:

50.0

Abstract:

An investigation of five computer programs which calculate skin friction and boundary-layer integral properties in two-dimensional, turbulent, transonic flow was conducted. The five programs were of varying complexity and consisted of four boundary-layer-type methods with turbulence modeling varying from algebraic eddy viscosity models to a two-equation of turbulence model, and one mean flow compressible Navier-Stokes technique with algebraic turbulence modeling. The quality of the computed results was judged by comparison with available experimental data. For the data considered which were nonseparated, two-dimensional, transonic, adiabatic wall data, the most accurate calculations of skin friction were provided by an integral boundary-layer method and a finite difference boundary-layer method, both with algebraic turbulence modeling.

Descriptors:

• *SKIN FRICTION
• *TURBULENT FLOW
• BOUNDARY LAYER FLOW
• COMPUTER PROGRAMS
• FINITE DIFFERENCE THEORY
• INTEGRAL EQUATIONS
• MATHEMATICAL MODELS
• NAVIER STOKES EQUATIONS
• TRANSONIC FLOW
• TURBULENT BOUNDARY LAYER
• TWO DIMENSIONAL FLOW

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE