Three-dimensional flow calculation by the method of characteristics.

AIAA Journal ◽  
1967 ◽  
Vol 5 (10) ◽  
pp. 1906-1908 ◽  
Author(s):  
JOHN V. RAKICH
Keyword(s):  
Method Of Characteristics ◽  
Three Dimensional ◽  
Three Dimensional Flow ◽  
Flow Calculation ◽  
Dimensional Flow ◽  
The Method Of Characteristics

The Calculation of Three Dimensional Viscous Flow Through Multistage Turbomachines

1990 ◽  
Author(s):  
J. D. Denton
Keyword(s):  
Boundary Conditions ◽  
Unsteady Flow ◽  
Viscous Flow ◽  
Calculation Method ◽  
Three Dimensional ◽  
Mixing Process ◽  
Three Dimensional Flow ◽  
Flow Calculation ◽  
Dimensional Flow ◽  
Flow Through

The extension of a well established three dimensional flow calculation method to calculate the flow through multiple turbomachinery blade rows is described in this paper. To avoid calculating the unsteady flow, which is inherent in any machine containing both rotating and stationary blade rows, a mixing process is modelled at a calculating station between adjacent blade rows. The effects of this mixing on the flow within the blade rows may be minimised by using extrapolated boundary conditions at the mixing plane.

Three Dimensional Supersonic Flow Through a Cascade of Twisted Flat Plates

1980 ◽  
Vol 102 (3) ◽  
pp. 338-343
Author(s):  
C. F. Grainger
Keyword(s):  
Method Of Characteristics ◽  
Three Dimensional ◽  
Axial Flow ◽  
Finite Difference Approximation ◽  
Difference Approximation ◽  
Flat Plates ◽  
Three Dimensional Flow ◽  
Dimensional Flow ◽  
Two Dimensional Flow ◽  
Flow Through

The three-dimensional flow through a cascade of twisted flat-plate blades is calculated using a computer program based on a finite-difference approximation to the method of characteristics. The relative flow is supersonic but the axial flow is subsonic. For two-dimensional flow under similar conditions, the inlet flow field is one of “unique-incidence,” the effect discussed by Starken (5) and others. The main purpose of the present work is to extend the understanding of this effect to three-dimensional flow. Important differences between the two and three-dimensional flow fields are explained in terms of the interaction between neighboring sections of the flow.

scholarly journals AUTOMATIC FLOW CALCULATION OF REGURGITANT JETS FROM VOLUME RENDERED THREE-DIMENSIONAL FLOW IMAGES: IN-VITRO STUDIES. 209

1996 ◽  
Vol 39 ◽  
pp. 37-37
Author(s):  
Robin Shandas ◽  
Eugene Little ◽  
Jeffrey Kwon ◽  
Ole Knudson ◽  
Lilliam Valdes-Cruz
Keyword(s):  
Three Dimensional ◽  
In Vitro Studies ◽  
Three Dimensional Flow ◽  
Flow Calculation ◽  
Dimensional Flow

Three-Dimensional Flow Calculation in a Textile Dyeing Process

2002 ◽  
Vol 72 (9) ◽  
pp. 783-788 ◽  
Author(s):  
S. Scharf ◽  
E. Cleve ◽  
E. Bach ◽  
E. Schollmeyer ◽  
P. Naderwitz
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Flow ◽  
Flow Calculation ◽  
Dimensional Flow ◽  
Dyeing Process ◽  
Textile Dyeing

Non-Equilibrium Homogeneously Condensing Flow Analyses as Design Tools for Steam Turbines

2002 ◽  
Author(s):  
Shigeki Senoo ◽  
Yoshio Shikano
Keyword(s):  
Flow Pattern ◽  
Steam Turbine ◽  
Three Dimensional ◽  
Design Stage ◽  
Steam Turbines ◽  
Three Dimensional Flow ◽  
Pattern Design ◽  
Flow Calculation ◽  
Dimensional Flow ◽  
Non Equilibrium

In order to get the details of flow fields in steam turbines, three-dimensional turbulent flow calculations are useful. However in a design procedure, three-dimensional flow calculations are only possible in the last design stage, because they need in-depth boundary conditions of both geometries and flows. At such a late time in the procedure, it is difficult to go back and change main design parameters, such as flow area and stage load. Both three-dimensional flow patterns and non-equilibrium condensation caused by rapid expansions of steam have important roles with respect to steam turbine performance particularly in low-pressure sections. The steam turbine internal efficiency can be improved by taking account of these effects in the early design stage, especially in flow pattern design. This paper describes a multi-stage through-flow calculation technique including both three-dimensional flow efffects and phase changes from vapour to small droplets. To compute the high-speed two phase steam flow, a flux-splitting procedure including non-equilibrium homogeneously condensation is introduced. Three-dimensional blade forces are calculated by using angles of both blade camber and radial lean. The blade camber lines can be decided without in-depth blade geometries. Therefore this computational technique is applicable in the flow pattern design. The calculation results agree well with fully three-dimensional flow calculation and the calculation can predict supersaturating states and Wilson lines which are defined as the maximum supercooling.

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