Effect of Passive Bleeding on a Non-Slender Compound Delta Wing
Disciplines
Aerodynamics and Fluid Mechanics
Abstract (300 words maximum)
In this study, we examine the role of passive bleeding in optimizing the aerodynamic efficiency of a non-slender compound delta wing, a critical aspect for enhancing aircraft stability and maneuverability during high-angles of attack (α). Utilizing Ansys Fluent for our Computational Fluid Dynamics (CFD) analysis, this research investigates the impact of integrating passive bleeding holes on the wing surfaces. These strategically positioned perforations are designed to redirect airflow from areas of high pressure to regions of lower pressure, potentially energizing the boundary layer and delay flow separation. The investigation focuses on determining the optimal arrangement of these bleeding features—evaluating variables such as hole size, distribution, and placement—to discover their influence on key aerodynamic parameters including lift, drag, and vortex behavior. Preliminary results reveal that a carefully located passive bleeding system can significantly lessen flow separation issues, leading to improvements in lift-to-drag ratios and stall characteristics. This presents significant insights into capitalizing passive bleeding as an effective, low-cost strategy for the aerodynamic refinement of non-slender compound delta wings, suggesting wider applications in the design of a more agile and fuel-efficient aircraft for both military and future commercial aviation sectors.
Academic department under which the project should be listed
SPCEET - Mechanical Engineering
Primary Investigator (PI) Name
Gaurav Sharma
Effect of Passive Bleeding on a Non-Slender Compound Delta Wing
In this study, we examine the role of passive bleeding in optimizing the aerodynamic efficiency of a non-slender compound delta wing, a critical aspect for enhancing aircraft stability and maneuverability during high-angles of attack (α). Utilizing Ansys Fluent for our Computational Fluid Dynamics (CFD) analysis, this research investigates the impact of integrating passive bleeding holes on the wing surfaces. These strategically positioned perforations are designed to redirect airflow from areas of high pressure to regions of lower pressure, potentially energizing the boundary layer and delay flow separation. The investigation focuses on determining the optimal arrangement of these bleeding features—evaluating variables such as hole size, distribution, and placement—to discover their influence on key aerodynamic parameters including lift, drag, and vortex behavior. Preliminary results reveal that a carefully located passive bleeding system can significantly lessen flow separation issues, leading to improvements in lift-to-drag ratios and stall characteristics. This presents significant insights into capitalizing passive bleeding as an effective, low-cost strategy for the aerodynamic refinement of non-slender compound delta wings, suggesting wider applications in the design of a more agile and fuel-efficient aircraft for both military and future commercial aviation sectors.