Separating Loss in Axial-Flow-Turbine Cascades

2020 ◽  
Vol 93 (4) ◽  
pp. 868-877 ◽  
Author(s):  
Yu. A. Grishin ◽  
V. N. Bakulin
Keyword(s):  
Axial Flow ◽  
Turbine Cascades

Predictions of Endwall Losses and Secondary Flows in Axial Flow Turbine Cascades

1986 ◽  
Author(s):  
O. P. Sharma ◽  
T. L. Butler
Keyword(s):  
Flow Visualization ◽  
Secondary Flow ◽  
Axial Flow ◽  
Secondary Flows ◽  
Integral Boundary ◽  
Realistic Interpretation ◽  
Proposed Model ◽  
Turbine Cascades ◽  
Flow Theories ◽  
Semi Empirical

The development of a semi-empirical model for estimating endwall losses is described in this paper. The model has been developed from improved understanding of complex endwall secondary flows, acquired through review of flow visualization and pressure loss data for axial flow turbomachine cascades. The flow visualization data together with detailed measurements of viscous flow development through cascades have permitted more realistic interpretation of the classical secondary flow theories for axial turbomachine cascades. The re-interpreted secondary flow theories together with integral boundary layer concepts are used to formulate a calculation procedure for predicting losses due to the endwall secondary flows. The proposed model is evaluated against data from published literature and improved agreement between the data and predictions is demonstrated.

scholarly journals Three-Dimensional Flow Predictions in Axial-Flow Turbine Cascades

1998 ◽  
Author(s):  
O. Niestroj ◽  
P. M. Came
Keyword(s):  
Experimental Studies ◽  
Three Dimensional ◽  
Axial Flow ◽  
Flow Angle ◽  
Contour Plots ◽  
Turbine Cascades ◽  
Flow Effects ◽  
Set Up ◽  
Annular Cascade ◽  
Good Agreement

Numerical investigations of the three-dimensional flowfields in a turbine linear cascade and in an annular, non-rotating turbine cascade have been carried out. Both cascades were the subjects of published experimental studies. In the experimental set-up for the annular cascade the hub wall upstream of the blades could be either stationary or rotating so that a collateral or a skewed inlet boundary layer could be achieved. The results of the computations have been compared with the experimental data. Total pressure loss coefficients and exit flow angles have been studied and in both cascades the predicted secondary flow effects are in good agreement with the experimental results. Two-dimensional contour plots in the measurement planes and pitchwise-averaged flow angle comparisons illustrate the accuracy of the computations.

Hemodynamic effects of pump flow reduction in patients with axial flow pumps during exercise training

2012 ◽  
Vol 60 (S 01) ◽  
Author(s):  
P Ganslmeier ◽  
HJ Schneider ◽  
A Keyser ◽  
M Michl ◽  
M Foltan ◽  
...  
Keyword(s):  
Exercise Training ◽  
Axial Flow ◽  
Hemodynamic Effects ◽  
Flow Reduction ◽  
Pump Flow

Axial-flow propeller pump for small rice farms and fishponds

Waterlines ◽  
1989 ◽  
Vol 8 (2) ◽  
pp. 10-12 ◽  
Author(s):  
Stickney ◽  
Salazar
Keyword(s):  
Axial Flow

Technique for Improving the Flow Rate Estimation Range by Using an Axial Flow Water Turbine Generator

2017 ◽  
Vol 137 (1) ◽  
pp. 30-35
Author(s):  
Hiroaki Narita ◽  
Makoto Saruwatari ◽  
Jun Matsui ◽  
Yasutaka Fujimoto
Keyword(s):  
Flow Rate ◽  
Axial Flow ◽  
Turbine Generator ◽  
Rate Estimation ◽  
Water Turbine ◽  
Estimation Range

Spot size and effective focal length measurements for a fast axial flow CO2 laser

1997 ◽  
Author(s):  
Robert J. Steele ◽  
Phillip W. Fuerschbach ◽  
Danny O. MacCallum
Keyword(s):  
Co2 Laser ◽  
Focal Length ◽  
Axial Flow ◽  
Spot Size ◽  
Effective Focal Length ◽  
Length Measurements
Sign in / Sign up

Export Citation Format

Share Document