Effect of Planar Member Cross-Section on Cascade Fin Aerodynamics

What is it about?

The paper makes use of a simplified grid fin geometry termed as cascade fins to investigate the impact of lifting member cross-section variation on its subsonic aerodynamics. It also compares the results for rectangular cross-section variants. The analysis further comprehends the effect of gap variation for the two cross-sections. This analysis by virtue of exhaustive numerical simulations deliberates a significant improvement in aerodynamic efficiency for airfoil cascade fins at the cost of reduced stall angle and extended cost of manufacturing. Although stall angle can be improved by optimal gap selection between the lifting members to achieve an aerodynamically efficient configuration alongside superior manoeuvrable control surface design.

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