PROTEUS two-dimensional Navier-Stokes computer code, version 1. 0. Volume 1: Analysis description

Technical Report · Thu Mar 01 00:00:00 EST 1990

OSTI ID:6750912

Towne, C E; Schwab, J R; Benson, T J; Suresh, A

A new computer code was developed to solve the two-dimensional or axisymmetric, Reynolds averaged, unsteady compressible Navier-Stokes equations in strong conservation law form. The thin-layer or Euler equations may also be solved. Turbulence is modeled using an algebraic eddy viscosity model. The objective was to develop a code for aerospace applications that is easy to use and easy to modify. Code readability, modularity, and documentation were emphasized. The equations are written in nonorthogonal body-fitted coordinates, and solved by marching in time using a fully-coupled alternating direction-implicit procedure with generalized first- or second-order time differencing. All terms are linearized using second-order Taylor series. The boundary conditions are treated implicitly, and may be steady, unsteady, or spatially periodic. Simple Cartesian or polar grids may be generated internally by the program. More complex geometries require an externally generated computational coordinate system. The documentation is divided into three volumes. Volume 1 is the Analysis Description, and describes in detail the governing equations, the turbulence model, the linearization of the equations and boundary conditions, the time and space differencing formulas, the ADI solution procedure, and the artificial viscosity models.

• Research Organization: National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
• OSTI ID: 6750912
• Report Number(s): N-90-21303; NASA-TM-102551; E-5366; NAS-1.15:102551
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COMPRESSIBLE FLOW
P CODES
NAVIER-STOKES EQUATIONS
UNSTEADY FLOW
CARTESIAN COORDINATES
CONSERVATION LAWS
DIFFERENTIAL EQUATIONS
FINITE DIFFERENCE METHOD
MATHEMATICAL MODELS
TURBULENCE
TWO-DIMENSIONAL CALCULATIONS
VISCOSITY
COMPUTER CODES
COORDINATES
EQUATIONS
FLUID FLOW
ITERATIVE METHODS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
420400* - Engineering- Heat Transfer & Fluid Flow