A FINITE DIFFERENCE METHOD SOLUTION OF NONSIMILAR, EQUILIBRIUM AND NON- EQUILIBRIUM AIR, BOUNDARY LAYER EQUATIONS WITH LAMINAR AND TURBULENT VISCOSITY MODELS. PART II: COMPUTER PROGRAM AND SUPPLEMENT

1965 ◽  
Author(s):  
H. E. Gould ◽  
L. S. Galowin
Keyword(s):  
Boundary Layer ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Computer Program ◽  
Difference Method ◽  
Turbulent Viscosity ◽  
Boundary Layer Equations ◽  
Viscosity Models ◽  
Non Equilibrium

On a Convergent Multi-Moment Method for the Laminar Boundary Layer Equations

1967 ◽  
Vol 18 (4) ◽  
pp. 332-353 ◽  
Author(s):  
Howard E. Bethel
Keyword(s):  
Boundary Layer ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Laminar Boundary Layer ◽  
Difference Method ◽  
Moment Method ◽  
External Flow ◽  
Higher Moments ◽  
Type Method ◽  
Boundary Layer Equations

SummaryThis paper presents a summary of a multi-moment method for solving the laminar boundary layer equations. Results obtained with the method tend to converge to the exact values as higher moments are used. Both similar and non-similar external flow fields are considered. The present results are compared with those obtained by another multi-moment method, a finite-difference method and a refined Pohlhausen-type method.

Performance of Conical Diffusers With Annular Injection at Inlet

1970 ◽  
Vol 92 (4) ◽  
pp. 827-835 ◽  
Author(s):  
W. B. Nicoll ◽  
B. R. Ramaprian
Keyword(s):  
Boundary Layer ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
Analytical Method ◽  
Injection Rate ◽  
Experimental Results ◽  
Pressure Recovery ◽  
Boundary Layer Equations ◽  
Secondary Injection

Data on the gross performance of conical diffusers subjected to annular secondary injection at inlet are reported. Tests indicate that the improvement in diffuser performance is significant even at moderate rates of injection. The effects of injection rate and diffuser geometry on the pressure recovery and stall are discussed. An analytical method based on the solution of the boundary layer equations by the Patankar-Spalding finite difference method has been used to obtain predictions of pressure recovery with inlet injection. The predictions compare well with the experimental results.

Sign in / Sign up

Export Citation Format

Share Document