TITLE:
Performance of an Axial Cascade
AUTHORS:
Basharat Salim
KEYWORDS:
Axial; Cascade; Performance; Deflection; Incidence
JOURNAL NAME:
Open Journal of Fluid Dynamics,
Vol.3 No.3,
September
18,
2013
ABSTRACT:
A cascade is defined as an infinite
row of equidistant similarly aerofoil bodies. The cascade is used to divert a
flow stream with a minimal loss. The flow over an axial cascade presents a
complicated intra blade fluid dynamic interaction that causes the flow to
behave differently than the flow over a single aerofoil blade. A cascade tunnel
in which different shapes of cascades could be tested for performance
evaluation has been build. An axial flat plate cascade of 70 mm chord, 215 mm
span and 0.55 pitch chord ratio has been tested in this tunnel for evaluating
its aerodynamic performance. The results depict
that the Reynolds number, incidence and blade angle of the cascade control the
aerodynamic performance of the axial cascade.