scholarly journals Experimental investigation on the aerodynamic loads and wake flow features of low aspect-ratio triangular prisms at different wind directions

2009 ◽  
Vol 25 (7) ◽  
pp. 1119-1135 ◽  
Author(s):  
G.V. Iungo ◽  
G. Buresti
Keyword(s):  
Experimental Investigation ◽  
Aspect Ratio ◽  
Wake Flow ◽  
Aerodynamic Loads ◽  
Low Aspect Ratio ◽  
Flow Features

Experimental investigation on tilt stabilizing effect of external toroidal field in low aspect ratio tokamak

1997 ◽  
Vol 4 (2) ◽  
pp. 315-322 ◽  
Author(s):  
A. Morita ◽  
Y. Ono ◽  
M. Katsurai ◽  
M. Yamada ◽  
S. Yoshikawa
Keyword(s):  
Experimental Investigation ◽  
Aspect Ratio ◽  
Toroidal Field ◽  
Low Aspect Ratio ◽  
Stabilizing Effect

Performance of Low-Aspect-Ratio Diffusers With Fully Developed Turbulent Inlet Flows: Part I—Some Experimental Results

1973 ◽  
Vol 95 (3) ◽  
pp. 385-392 ◽  
Author(s):  
O. J. McMillan ◽  
J. P. Johnston
Keyword(s):  
Experimental Investigation ◽  
Aspect Ratio ◽  
Boundary Layers ◽  
High Aspect Ratio ◽  
Total Pressure ◽  
Turbulent Boundary Layers ◽  
Two Dimensional ◽  
Low Aspect Ratio ◽  
Performance Curves ◽  
Existing Data

An experimental investigation of the effects of incompressible, fully developed, turbulent inlet flow on the performance of straight, two-dimensional rectangular diffusers of low aspect ratio is presented. Results presented include flow regime information, performance curves, and total-pressure loss data for a series of diffusers of moderate non dimensional length and low aspect ratio. The results are compared to existing data and correlations and important differences are noted between the diffusers of this study and diffusers of high aspect ratio with thin to moderately thick turbulent boundary layers at inlet.

Unsteady Analysis of Inter-Rows Stator-Rotor Spacing Effects on a Transonic, Low-Aspect Ratio Turbine

2015 ◽  
Author(s):  
Etienne Tang ◽  
Gilles Leroy ◽  
Mickaël Philit ◽  
Jacques Demolis
Keyword(s):  
Experimental Data ◽  
Aspect Ratio ◽  
High Pressure Turbine ◽  
Low Aspect Ratio ◽  
Spacing Effects ◽  
Air Turbine ◽  
Flow Features ◽  
Aerodynamic Performances ◽  
Flow Through ◽  
Transonic Turbine

The aerodynamic performances of an axial turbine are affected by the distance between the stator and the rotor. Previous studies have shown different trends, depending mainly on whether the turbine is subsonic or not. The present paper aims at improving the understanding of the effect of rows spacing on the flow through a transonic turbine. A one-stage, low aspect ratio, high pressure turbine case is investigated using CFD. Steady and unsteady phase-lagged RANS computations are performed on this configuration with different inter-blade rows distances. The results are successfully compared with experimental data from a cold air turbine rig. Entropy production balances are used to emphasize the main loss areas and the loss variations caused by changes in inter-blade rows distance. Two techniques are compared for computing these balances, and one of them appears to perform much better. The flow features causing these losses are then identified. Finally, an optimal inter-rows spacing is found. It is a compromise between the losses created by strong stator-rotor interactions at small inter-rows gaps and the losses generated at the endwalls in the inter-rows space at large distances.

Experimental investigation of the ripple induced losses of perpendicularly injected beam ions in the low aspect ratio helical system CHS

2001 ◽  
Vol 41 (9) ◽  
pp. 1273-1281 ◽  
Author(s):  
M Isobe ◽  
M Sasao ◽  
S Okamura ◽  
T Kondo ◽  
S Murakami ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Aspect Ratio ◽  
Low Aspect Ratio
Sign in / Sign up

Export Citation Format

Share Document