What is it about?
This study aims to compute a similitude for a planar wedge with an attached oblique shock wave at a high angle of attack in a hypersonic flow. The flow at a span-wise location is two-dimensional according to a strip theory. When combined with the similitude, the resulting piston theory provides closed-form solutions for stiffness and damping derivatives in pitch.
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Why is it important?
The stiffness as well as damping derivatives decrease with an increase in the Mach number. The increase in semi-vertex angle also results in a shift of center of pressure towards the trailing edge resulting in an improvement in the stability of the aerospace vehicles
Perspectives
The stiffness as well as damping derivatives decrease with an increase in the Mach number. The increase in semi-vertex angle also results in a shift of center of pressure towards the trailing edge resulting in an improvement in the stability of the aerospace vehicles
Dr. Shamitha Shetty
Nitte University
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This page is a summary of: Evaluation of stability derivative of a planar wedge for hypersonic flow for a specific heat ratio 1.667, January 2025, American Institute of Physics,
DOI: 10.1063/5.0262108.
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