Discussion: “Three-Dimensional Supersonic Flow Through a Cascade of Twisted Flat Plates” (Grainger, C. F., 1980, ASME J. Fluids Eng., 102, pp. 338–343)

1980 ◽  
Vol 102 (4) ◽  
pp. 520-520
Author(s):  
L. H. Smith
1980 ◽  
Vol 102 (3) ◽  
pp. 338-343
Author(s):  
C. F. Grainger

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.


1980 ◽  
Vol 102 (3) ◽  
pp. 330-337
Author(s):  
J. H. Horlock ◽  
C. F. Grainger

An actuator disk method is developed for calculating the flow through the blade rows of a turbomachine in which the velocity relative to the blading may be supersonic. The method is compared with calculations of the fully supersonic flow through a twisted blade row using a three-dimensional method of characteristics.


1977 ◽  
Vol 99 (1) ◽  
pp. 115-120
Author(s):  
Hans-Heiner Fruehauf

Solutions of the differential equations of the axisymmetric model and circumferentially averaged solutions of the differential equations of the three-dimensional model are compared quantitatively for steady supersonic flows through rotating annular cascades. Thereby three-dimensional corrections for flow quantities, which determine the applicability of the axisymmetric analysis, are investigated as a function of geometrical and gas dynamical parameters. Finally, these three-dimensional corrections are compared to three-dimensional corrections for the solutions of the usual blade-to-blade model on cylindrical surfaces of revolution for identical annular cascades.


1976 ◽  
Vol 98 (2) ◽  
pp. 274-280
Author(s):  
H. H. Fruehauf

The spatial supersonic flow through rotating and stationary annular cascades is analyzed by means of a nonlinear three-dimensional method of characteristics. Three-dimensional corrections for flow quantities referred to a quasi-three-dimensional approximation method are determined depending on geometric and gas dynamical parameters. Characteristic properties of spatial supersonic flow through annular cascades are analyzed, leading to guiding principles for practical design purposes.


1995 ◽  
pp. 163-170
Author(s):  
Shigeru Aso ◽  
Shozo Maekawa ◽  
Michiaki Tan-Nou ◽  
Satosh Okuyama ◽  
Yasunori Ando ◽  
...  

Author(s):  
Turki Al-Khalifah ◽  
Abdul Aabid ◽  
Sher Afghan Khan ◽  
Muhammad Hanafi Bin Azami ◽  
Muneer Baig

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