Frequency and heated region shape effects on the physics oMach 2 flow over a hemisphere cylinder
Joseph, Kiora Kianvashrad, Nadia
Joseph, Kiora
Kianvashrad, Nadia
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2026
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Kiora Joseph and Nadia Kianvashrad. "Frequency and Heated Region Shape Effects on the Physics of Mach 2 Flow Over a Hemisphere Cylinder," AIAA 2026-0082. AIAA SCITECH 2026 Forum. January 2026.
Abstract
The interaction of a heated region with a hemisphere cylinder in Mach 2 flow is numerically investigated. Energy deposition is applied at frequencies of 4148.86 Hz and 8297.72 Hz (i.e Strouhal number of 0.2 and 0.4 respectively) for two heated region shapes, a spherical heated region and a truncated cone heated region. Details of how the flow physics changes and its effect on drag reduction are included. Changing the heated region shape, alters blast wave shape and vortex formation processes. For single impulse energy deposition, the truncated cone accounts for more drag reduction compared to the spherical heated region. Pulsed energy deposition results in an increase in the drag reduction obtained. © 2026 American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
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American Institute of Aeronautics and Astronautics Inc, AIAA. AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2026. 12 January 2026 through 16 January 2026. Orlando. 346669
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AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2026