STC Seminar Hall, Dept. of Aerospace Engineering

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Ph.D. (Engg):: Development of Approaches for Optimal Shared Utilization of Spatially Distributed Resources Under Sparse Connectivity in Energy Internet

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

The global shift towards sustainable power generation has led to a significant rise in distributed energy resources (DERs), particularly from renewable sources. These localized generation systems, when combined with energy storage, form microgrids—self-contained units capable of managing generation and consumption. While energy storage enables time-shifted usage of intermittent renewable power, limitations in storage capacity and […]

Ph.D. (Engg): ON HIGH-SPEED CURVED COMPRESSION RAMP AIR INTAKES

STC Seminar Hall, Dept. of Aerospace Engineering

A scramjet, i.e., a supersonic combustion ramjet, is an air-breathing engine that enables sustained atmospheric flight in the hypersonic regime. It consists broadly of four key components: the air intake, isolator, combustor, and nozzle. The air intake and the isolator collectively comprise the compression system, which captures and conditions the freestream flow to suit the […]

Investigation of flow instabilities in high-speed impinging jets using dual-time velocity measurements

STC Seminar Hall, Dept. of Aerospace Engineering

Motivated by applications in the aerospace propulsion industry as well as other energy systems, the fundamental study of phase-locked shear-layer instabilities in high-speed impinging jets, has been of research interest for a long time. The study of instabilities is usually conducted with time derivatives of velocity field. However, time-resolved experimental data acquisition using particle image […]

Space Domain Awareness in the Artemis Era

STC Seminar Hall, Dept. of Aerospace Engineering

Since the Apollo era, space has become an increasingly valuable domain for national security due to diplomatic, informational, and economic reasons. The last few years have seen exponential growth in the launch of space objects and there is an increased interest in having a permanent cislunar presence through the Artemis program. The understanding of motion […]

Miniaturised technologies for potential applications in space research

STC Seminar Hall, Dept. of Aerospace Engineering

Miniaturised technologies, due to their portability, rapid responses, low powers and ability of multi-component integration, have received an ever-growing interest in areas like healthcare, air quality, and space research. This talk will provide an overview of my research in 3 domains of miniaturised technologies: a) microfluidics, b) MEMS sensors and c) nanoaerosol instruments. I will […]

Laser Beam Control Through Atmospheric Turbulence

STC Seminar Hall, Dept. of Aerospace Engineering

Laser beam is highly affected by prevailing atmospheric conditions and limit the system performance for various applications. The talk mainly covers the cause of optical turbulence, its effects on laser beam and further discuss the technologies for controlling the beam for enhancing the effectiveness. Two main techniques namely the Tip-tilt correction for maintaining the beam […]

Ph.D.(Engg): Investigations on Hypersonic Laminar to Turbulent Boundary Layer Transition in a Shock Tunnel.

STC Seminar Hall, Dept. of Aerospace Engineering

The laminar to turbulent boundary layer transition onset has perplexed fluid dynamics community irrespective of the flow regime under which the phenomenon is probed. The complexity of the problem is compounded in high-speed compressible flows where in the transition onset location is a strong function of many subtle factors like freestream quality, surface roughness, wall […]

The longest known insect migration: Fusing Biology with Aerospace Engineering for innovative solutions

STC Seminar Hall, Dept. of Aerospace Engineering

The intriguing annual migration of the dragonfly species, Pantala flavescens, was reported a century ago. The multi-generational, transoceanic migration circuit spanning 14000-18000 kms, from India to Africa is an  astonishing feat for an insect few cms in size. Wind, precipitation, fuel, breeding, and the life cycle affect  the migration, yet understanding of their collective role […]

Ph.D.(Engg) : Multi-Agent Pursuit-Evasion and Coverage Strategies

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

Autonomous agents are increasingly being used to solve many tasks, deemed complex by humans, with ease and effectiveness. Two such applications are in defense scenarios and in coverage. This thesis, therefore, is devoted towards study of motion planning strategies for autonomous agents in the context of pursuit-evasion problems as well as different coverage problems. The […]

Ph.D. (Engg): Studies on Fluid Structure Interactions in Hypersonic Flow

STC Seminar Hall, Dept. of Aerospace Engineering

The global thrust towards the development of hypersonic cruise systems for various applications is leading towards slender configurations with lifting and control surfaces which are thin and complaint and face a hypersonic flow. Hypersonic flows are characterized by large flow kinetic energy and momentum, which manifests into strong shocks, high temperatures, and associated effects that […]

MTech(Res): Adjoint-Based Aerodynamic Shape and Mesh Optimization with High-order Discontinuous Galerkin Methods

STC Seminar Hall, Dept. of Aerospace Engineering

The aerodynamic shape of an aircraft plays a critical role in its performance. Aerodynamic Shape Optimization (ASO) modifies the shape to achieve desired performance metrics, such as reduced drag or increased lift. ASO integrates numerical optimization techniques with Computational Fluid Dynamics (CFD). Gradient-based optimization techniques are widely employed for ASO. The adjoint solution enables the […]

Ph.D. (Engg): Effect of Surface Roughness on Mechanical Strength of Adhesively Bonded CFRP Joints – Experimental and Numerical Studies

STC Seminar Hall, Dept. of Aerospace Engineering

This dissertation focuses on surface preparation and its effect on the shear strength of adhesively bonded Single Lap Joints (SLJs) in Carbon Fiber Reinforced Polymer (CFRP), their fracture properties, and the associated Non-Destructive Evaluation (NDE) parameters. The surface preparation was carried out using different grades of emery paper so that the interfaces of different roughness […]

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