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Ph.D. (Engg): Aerodynamics and Stability of a Generic Tailless UAV in Ground Effect

AE Conference Room , AE 003
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Tailless UAVs are stealthy, high-subsonic configurations used for deep penetration into contested airspace. These configurations have wing with moderate leading edge sweep angle with no definite fuselage and lack both horizontal tail and vertical tail which makes the aerodynamics of these configurations very unique. The increase in autonomous UAVs in recent times have led to […]

Ph.D. (Engg):Tonal acoustic radiation from turbulent subsonic jets

STC Seminar Hall, Dept. of Aerospace Engineering

Acoustic tones in the near field of a Mach 0.9, Reynolds number 10^6 round jet are investigated using large-eddy simulations (LES) performed with the explicit filtering LES (EFLES) approach. The jet is issued into the ambient through a cylindrical nozzle. Pressure spectra at observer locations in the upstream direction reveal the presence of tones which […]

MTech(res) Parallel Particle Tracking for Turbulent Round Jets

STC Seminar Hall, Dept. of Aerospace Engineering

Particle tracking in turbulent jets is essential for an accurate Lagrangian understanding of jet flows. While parallel algorithms and numerical schemes to compute flow fields can be scaled to a large number of computing processes, the same is not necessarily true for particle tracking. This thesis presents an analysis of the parallel efficiency of particle […]

Ph.D. (Engg):Effect of rotation on the flow organisation and instability of a slender spinning body across quiescent, axial and compressible regimes

STC Seminar Hall, Dept. of Aerospace Engineering
Virtual Event Virtual Event

A body of revolution spinning in a fluid drives an inherently three-dimensional boundary layer, in which a centrifugally driven secondary circulation lifts the layer off the surface and a centrifugal instability carries it into transition. Most of what is known about this flow comes from single geometries (the rotating disk, the isolated cone or cylinder) […]

Taming Turbulence

Auditorium (AE 005), Department of Aerospace Engineering

Turbulence remains one of the outstanding problems of classical physics, and one that has challenged physicists and engineers alike for decades, even centuries. The fusion of classical approaches and tools of the modern day – theoretical analysis of the Navier-Stokes equations, state-of-the-art experimental observations, data-driven methods and machine learning – has led to substantial progress […]

Invited Talk on the Occasion of the Engineer’s Day – From MV to Spaceflight: Satellite Re-entry and the Future of Space Sustainability

Auditorium (AE 005), Department of Aerospace Engineering

National Engineers' Day commemorates the legacy of Sir M. Visvesvaraya, whose vision and engineering leadership helped lay foundations for India's technological development. From civil infrastructure and water resource management to advanced aerospace systems, India's engineering journey has been characterised by the pursuit of innovation that delivers enduring societal value. As India extends its capabilities in […]

Illuminating Complex Flows: Optical Diagnostics for Aerospace Applications

Auditorium (AE 005), Department of Aerospace Engineering

Hypersonic flight represents a major frontier in aerospace engineering, with its realization requiring a fundamental understanding of coupled chemical and fluid dynamic processes across multiple environments. Of particular importance are the reacting flows within the propulsion systems that enable sustained hypersonic flight and the high-temperature, chemically reacting flows that develop near vehicle surfaces at extreme […]

Ph.D. (Engg): Development of Learning-based Strategies for Reconnaissance with Multi-Robot Systems

STC Seminar Hall, Dept. of Aerospace Engineering
Virtual Event Virtual Event

Reconnaissance is the contest for information about a territory: one side tries to observe an asset or a guarded area, the other tries to deny it. Low-cost drones have made this contest cheap and constant, and protecting critical infrastructure against it is now a crucial problem, because an intruder no longer needs to strike a […]

Magneto-Active Solids for Adaptive Structures: Can Magnetic Fields Control Elastic Waves?

Magneto-active solids couple their mechanical response to externally applied magnetic fields, providing a promising route toward remotely tunable materials and structures. Such functionality is particularly attractive for aerospace applications involving vibration isolation, adaptive structures, sensing, and elastic-wave control. However, exploiting this coupling requires understanding a fundamental question: when does a magnetic field actually modify elastic-wave […]

Ph.D. (Engg): A Slotted Wing Configuration for STOL Applications

Online
Virtual Event Virtual Event

The rapid development of Urban Air Mobility (UAM) has led to the emergence of electric vertical take-off and landing (eVTOL) aircraft, with many current concepts relying on tilt-rotor or other complex propulsion-conversion mechanisms to achieve vertical take-off and landing followed by efficient forward flight. While these configurations provide the required operational flexibility, the mechanical complexity […]

Ph.D. (Engg): Splashing of impacting drops on rigid and flexible superhydrophobic surfaces

STC Seminar Hall, Dept. of Aerospace Engineering

Understanding droplet impact dynamics on superhydrophobic (SHP) surfaces is crucial for exploiting their exceptional liquid-repellent properties in various industrial applications. Studies on high-velocity droplet impacts on SHP surfaces, particularly under splashing conditions, are of significant importance for applications such as anti-icing and erosion protection of turbine blades. This thesis presents an experimental investigation of splashing […]

M.Tech (Res): Direct Numerical Simulation of Turbulent Aerosol Transport in Human Respiratory Flows

AE Conference Room , AE 003
Virtual Event Virtual Event

Airborne transmission of respiratory diseases is governed by the coupled dynamics of the exhaled turbulent flow and the transport of pathogen-laden aerosols and droplets. This thesis studies two representative respiratory activities, speech and cough, and quantifies the infection probability using Direct Numerical Simulations. The incompressible Boussinesq Navier-Stokes equations are solved using Megha-5 solver, including the […]

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