Optimum Approximate-Factorization Schemes for Two-Dimensional Steady Potential Flows

AIAA Journal ◽  
1982 ◽  
Vol 20 (8) ◽  
pp. 1057-1063 ◽  
Author(s):  
David Catherall
Keyword(s):  
Two Dimensional ◽  
Approximate Factorization ◽  
Potential Flows ◽  
Steady Potential

scholarly journals Viscous Flow Calculations in Turbomachinery Channels

1989 ◽  
Author(s):  
Francesco Martelli ◽  
Vittorio Michelassi
Keyword(s):  
Stokes Equations ◽  
Turbulent Viscosity ◽  
Axisymmetric Flow ◽  
Turbulence Models ◽  
Navier Stokes ◽  
Algebraic Expression ◽  
Two Dimensional ◽  
Approximate Factorization ◽  
Navier Stokes Equations ◽  
Flow Configurations

An implicit procedure based on the artificial compressibility formulation is presented for the numerical solution of the two-dimensional incompressible steady Navier-Stokes equations in the presence of large separated regions. Turbulence effects are accounted for by the Chien low Reynolds number form of the K-ε turbulence model and the Baldwin-Lomax algebraic expression for turbulent viscosity. The governing equations are written in conservative form and implicitly solved in fully coupled form using the approximate factorization technique. Preliminary tests were carried out in a laminar flow regime to check the accuracy and stability of the method in two-dimensional and cylindrical axisymmetric flow configurations. After testing in laminar and turbulent flow regimes and comparing the two turbulence models, the code was successfully applied to an actual gas turbine diffuser at low Mach numbers.

Non-stationary two-dimensional potential flows by the Broadwell model equations

2000 ◽  
Vol 19 (2) ◽  
pp. 303-315 ◽  
Author(s):  
Alexandre V. Bobylev ◽  
Gian Luca Caraffini ◽  
Giampiero Spiga
Keyword(s):  
Two Dimensional ◽  
Potential Flows ◽  
Model Equations
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