Part I of this paper describes the design and optimization of two high turning subsonic compressor cascades operating as an outlet guide vane (OGV) behind a single stage low pressure turbine at low Reynolds number condition $Re=1.3×105.$ In the numerical optimization algorithm, the design point and off-design performance has been considered in an objective function to achieve a wide low loss incidence range. The objective of the present paper is to examine some of the characteristics describing the new airfoils as well as to prove the reliability of the design process and the applied flow solver. Some aerodynamic characteristics for the two new airfoils and a conventional controlled diffusion airfoil (CDA), have been extensively investigated in the cascade wind tunnel of DLR Cologne. For an inlet Mach number of 0.6 the effect of Reynolds number and incidence angle on each airfoil performance is discussed, based on experimental and numerical results. For an interpretation of the airfoil boundary layer behavior, results of some boundary layer calculations are compared to oil flow visualization pictures. The design goal of an increased low loss incidence range at low Reynolds number condition could be confirmed without having a negative effect on the high Reynolds number region.

1.
Rhoden, H. G., 1952, “Effects of Reynolds Number on the Flow of Air Through a Cascade of Compressor Blades,” ARC, R&M No. 2919.
2.
Roberts
,
W. B.
,
1975
, “
The Effect of Reynolds Number and Laminar Separation on Axial Cascade Performance
,”
ASME J. Eng. Gas Turbines Power
,
97
, pp.
261
274
.
3.
Roberts
,
W. B.
,
1979
, “
Axial Compressor Blade Optimization in a Low Reynolds Number Regime
,”
AIAA J.
,
17
(
12
), pp.
1361
1367
.
4.
Selig
,
M. S.
,
Gopalarathan
,
A.
,
Giuere
,
P.
, and
Lyon
,
C. A.
,
2001
, “
Systematic Airfoil Design Studies at Low Reynolds Numbers,” in Fixed and Flapping Aerodynamics for Micro Air Vehicle Applications
,
Prog. Astronaut. Aeronaut.
,
195
, pp.
143
167
.
5.
Mueller, T. J., 1985, “Low Reynolds Number Vehicles,” AGARDograph No. 288, AGARD-AG-288.
6.
Sonoda, T., Yamaguchi, Y., Arima, T., Olhofer, M., Sendhoff, B., and Schreiber, H. A., 2003, “Advanced High Turning Compressor Airfoils For Low Reynolds Number Condition, Part 1: Design and Optimization,” ASME Paper GT-2003-38458.
7.
Olhofer, M., Arima, T., Sonoda, T., Fischer, M., and Sendhoff, B., 2001, “Aerodynamic Shape Optimization Using Evolution Strategies,” Optimization in Industry III, Springer-Verlag, New York.
8.
Yamaguchi, Y., and Arima, T., 2000, “Multi-Objective Optimization for the Transonic Compressor Stator Blade,” AIAA Paper 2000-4909.
9.
Arima
,
T.
,
Sonoda
,
T.
,
Shiratori
,
M.
,
Tamura
,
A.
, and
Kikuchi
,
K.
,
1999
, “
A Numerical Investigation of Transonic Axial Compressor Rotor Flow Using a Low Reynolds number k-ε Turbulence Model
,”
ASME J. Turbomach.
,
121
(
1
), pp.
44
58
.
10.
Wilcox
,
D. C.
,
1988
, “
Reassessment of the Scale-Determining Equation for Advanced Turbulence Models
,”
AIAA J.
,
26
(
11
), pp.
1299
1310
.
11.
Drela, M., and Youngren, H., 1991, “Viscous/Inviscid Method for Preliminary Design of Transonic Cascades,” AIAA Paper 91-2364.
12.
Drela, M., 1995, “Implementation of Modified Abu-Ghannam Shaw Transition Criterion,” MISES User’s Guide, M.I.T., Computational Aerospace Science Lab., Cambridge, MA.
13.
Steinert
,
W.
,
Eisenberg
,
B.
, and
Starken
,
B.
,
1991
, “
Design and Testing of a Controlled Diffusion Airfoil Cascade for Industrial Axial Flow Compressor Application
,”
ASME J. Turbomach.
,
113
(
4
), pp.
583
590
.
14.
Sanz, W., and Platzer, M. F., 1997, “On the Calculation of Laminar Separation Bubbles Using Different Transition Models,” ASME Paper 97-GT-453.
15.
Walraevens
,
R. E.
, and
Cumpsty
,
N. A.
,
1995
, “
,”
ASME J. Turbomach.
,
117
, pp.
115
125
.
16.
Michelassi
,
V.
,
Rodi
,
W.
, and
Gieß
,
P.-A.
,
1998
, “
Experimental and Numerical Investigation of Boundary-Layer and Wake Development in a Transonic Turbine Cascade
,”
Aerosp. Sci. Technol.
,
(3
), pp.
191
204
.
17.
Eppler, R., 1990, Airfoil Design and Data, Springer-Verlag, Berlin.