Numerical Investigation of the Vortex Breakdown of Compound Delta Wings at High Angles of Attack

Disciplines

Aerospace Engineering

Abstract (300 words maximum)

Compound delta wings have attracted considerable attention in aerospace research due to their enhanced agility, improved maneuverability, and ability to maintain consistent airflow at high angles of attack. However, as the angle of attack increases, the stability of vortices diminishes, ultimately leading to vortex breakdown. A comprehensive understanding of these critical thresholds is imperative for elucidating the behavior of compound delta wings across subsonic and supersonic flows. Nevertheless, the scarcity of research specifically dedicated to compound delta wings and their critical thresholds necessitates a more thorough investigation. The Reynolds number serves as a crucial indicator, signaling that at elevated levels, the flow becomes increasingly erratic and turbulent. Computational data generated through Ansys Fluent, a commercially available Reynolds Averaged Navier–Stokes Solver, can shed light on the breakdown phenomenon at various angles of attack. This study seeks to utilize advanced software and existing research to improve the reliability of results in this domain. It is anticipated that computational findings will corroborate the occurrence of vortex breakdown with increasing angles of attack, typically within the range of 10 to 15 degrees. Critical thresholds will be discerned through the analysis of lift and drag coefficients derived from numerical simulations.

Academic department under which the project should be listed

SPCEET - Mechanical Engineering

Primary Investigator (PI) Name

Gaurav Sharma

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Numerical Investigation of the Vortex Breakdown of Compound Delta Wings at High Angles of Attack

Compound delta wings have attracted considerable attention in aerospace research due to their enhanced agility, improved maneuverability, and ability to maintain consistent airflow at high angles of attack. However, as the angle of attack increases, the stability of vortices diminishes, ultimately leading to vortex breakdown. A comprehensive understanding of these critical thresholds is imperative for elucidating the behavior of compound delta wings across subsonic and supersonic flows. Nevertheless, the scarcity of research specifically dedicated to compound delta wings and their critical thresholds necessitates a more thorough investigation. The Reynolds number serves as a crucial indicator, signaling that at elevated levels, the flow becomes increasingly erratic and turbulent. Computational data generated through Ansys Fluent, a commercially available Reynolds Averaged Navier–Stokes Solver, can shed light on the breakdown phenomenon at various angles of attack. This study seeks to utilize advanced software and existing research to improve the reliability of results in this domain. It is anticipated that computational findings will corroborate the occurrence of vortex breakdown with increasing angles of attack, typically within the range of 10 to 15 degrees. Critical thresholds will be discerned through the analysis of lift and drag coefficients derived from numerical simulations.