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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 […]

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) : Effect of Laser Shock Peening on Residual Stress and Mechanical behaviour of Aluminium alloy AA2219 Friction Stir Weld

Online
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Aluminium alloy AA2219 is a precipitation hardenable wrought alloy with copper as a major alloying element. Large-volume propellant tanks of space launch vehicles are manufactured by joining AA2219 aluminium alloy through Friction Stir Welding (FSW) and it is designed optimally to improve the payload capability.  An increase in the strength of the FSW joint results […]

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 […]

MTech(Res) : Elastic Wave Dispersion Analysis and Mode Shape Investigation of Higher-order Beam Theory for Thick Beams

Online
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The dynamic behavior of structural components over broad frequency ranges, particularly thick beams under different constraints, is important in many engineering applications where reduced dimensional modeling is required for design. Applications are aerospace structures, mechanical systems and civil infrastructure. The rigid cross-section assumption in Euler-Bernoulli and even third-order beam theories cannot accurately capture the effects […]

Ph.D. (Engg): Control of Alternating Flow Phenomena in Transonic Shock Wave Boundary Layer Interactions Over Payload Region of a Generic Launch Vehicle Model

CEH Conference Hall- Room No.239, Second Floor, Department of Aerospace Engineering

The transonic Mach number regime is a critical phase in the atmospheric ascent of launch vehicles, where aerodynamic loads peak due to the combined effects of high freestream dynamic pressure and angle of attack. Besides high steady loads, launch vehicles experience very high levels of pressure fluctuations caused by interactions between the unsteady λ-shock system […]

Ph.D. (Engg): Behaviour Modelling of Non-Cooperative Space Objects and Strategies for Decision Support in Space Situational Awareness

Online
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In this modern era, Space is vital for a Nation’s prosperity and without space, many critical functions would simply stop working. The increasing number of satellite launches in recent times, is congesting the space environment. Space is also becoming an increasingly contested environment from the perspective of non-civilian applications of satellites. The civilian and non-civilian […]

Ph.D. (Engg): Navigation of Autonomous Vehicles using Event Cameras and Modified RRT Methods

Online
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Autonomous vehicles, such as unmanned aerial vehicles (UAVs) and autonomous mobile robots (AMRs), are at the forefront of technological innovation and are widely used across various applications. As these vehicles become more agile and operate primarily in unstructured environments, the components of the navigation pipeline must function in real time while optimizing limited onboard computing […]

Ph.D. (Engg): Compressive behavior of continuous fiber polymer composites in the presence of process-induced defects

AE Auditorium
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The current work examines how process-induced defects influence the compressive behavior of composite structures. The defects analyzed include wrinkles at the macroscale and fiber misalignment at the microscale. Uni-directional carbon fiber-reinforced polymer composites with intentionally created wrinkles were produced by strategically positioning laminate strips. Through comprehensive experimental characterization, the research thoroughly investigates the impact of […]

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 […]

Ph.D.(Engg):Elastic Wave Propagation in Textured Polycrystalline Media

Auditorium (AE 005), Department of Aerospace Engineering

The performance and reliability of structural components in advanced engineering applications, such as turbine discs in aeroengines, are critically influenced by their microstructural characteristics, particularly the crystallographic texture. Texture controls the mechanical response of a material and ultimately governs the safe life of a component. Ultrasonic non-destructive evaluation (NDE) techniques offer a powerful way to […]

Ph.D. (Engg): Aerodynamic Shape Optimization of Low Observable Air Intake Duct : A Gerlach Inspiration

Online
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Air intake system supplying air to the aircraft’s propulsion system is an important part of the aircraft. In modern military aircraft, air intake ducts are bent due to stealth and layout considerations. Due to significant contribution from rotating jet engine components to Radar Cross Section, need to inhibit direct line of sight of the Engine […]

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