Advanced International Journal for Research

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Volume 7 Issue 2
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Numerical Simulation of Hypersonic Inflatable Aerodynamic Decelerators

Author(s) Dr. Jayahar Sivasubramanian, Mr. Arun Prathap, Mr. Sai K Ullal, Mr. Rishab M Chitgopekar, Mr. Raunak G Mahenderkar, Mr. Deepanshu K Punjabi
Country India
Abstract This paper uses CFD simulations to examine and assess a Hypersonic Inflatable Aerodynamic Decelerator (HIAD) to create technologies for landing big payloads on planets with thin atmospheres. Because it includes extreme physical conditions, atmospheric entry is one of the most challenging phases of most space missions. These severe physical conditions need a comprehensive grasp of hypersonic flow, which is the flow regime in which they occur. The flexible thermal protection cover of the Hypersonic Inflatable Aerodynamic Decelerator deforms during the re-entry phase. As a result, an in-depth investigation into the subject is required to analyze heat transfers and pressure distributions on the body's surface in order to prevent structural failures. This study used the SU2 open domain CFD software to do the necessary CFD simulations to evaluate the flow mechanics over the body. The GMSH tool was used to build the high-quality grids required for this project. SU2's advanced NEMO solver and the Mutation++ library may be used to simulate and explore non-equilibrium flows, providing a thorough and in-depth understanding of the effects of hypersonic flows on the body during the planetary entry phase. This study has the potential to be extended to 3D HIAD geometries, allowing for a more complete knowledge of high-speed flows through atmospheric entry modules at varied angles of attack. This research focuses on achieving the best results for 2D geometries and investigates heat transport on the body's surface, validating experimental results as well as comparing results from conventional and non-equilibrium flow solvers.
Keywords CFD, SU2, HIAD, Hypersonic Flight, Aerodynamic Decelerator.
Field Engineering
Published In Volume 7, Issue 2, March-April 2026
Published On 2026-04-24
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E-ISSN 3048-7641
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