Aerospace Engineering (AE)
Recent Submissions
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Transonic Shock Buffet in an Axial Flow Fan
Transonic shock buffet, a self-sustained shock oscillation resulting from shock-boundary layer interaction, is observed across a range of operating points on the performance map of a transonic axial flow fan. Shock ... -
Multiscale modelling and design of multifunctional composites for microwave absorption applications
Microwave absorption materials (MAMs) are crucial for both long-standing aeronautical and emerging space security applications, with carbon-based materials traditionally dominating the field due to their exceptional strength ... -
Development of Scalable UAV Swarm-based Cooperative Search and Mitigation Approaches for Wildfire Management
Climate change has significantly exacerbated wildfire seasons, increasing their frequency, duration, and scale of destruction. Globally, wildfires destroy approximately 400 million hectares of land annually, resulting in ... -
Intersection Planning in Multilane Aerial Corridors for UAVs
Humans have always been on a quest to improve the means of transportation. The evolution will inevitably lead towards autonomy in the operations of aerial and ground vehicles. As for the Uncrewed Aerial Vehicles (UAVs), ... -
Experimental investigation into the effect of transverse acoustic excitation over swirling flow and flame
Combustion in gas turbine combustors features complex coupling of fluid dynamics, heat release, and chamber acoustics. Most combustion systems have a tendency to self-excite large amplitudes of pressure and heat release ... -
Control of Alternating Flow Phenomena in Transonic Shock Wave Boundary Layer Interactions Over Payload Region of a Generic Launch Vehicle Model
During the transonic phase of a launch vehicle’s ascent, aerodynamic loads peak due to high freestream dynamic pressure and angle of attack. In addition to steady loads, significant pressure fluctuations arise from Shock ... -
Studies on Fluid-Structure Interactions in Hypersonic Flow
Fluid-structure interaction (FSI) represents a critical area of research in aerospace engineering, particularly in the hypersonic flows where aerodynamic and thermal loads significantly impact structural integrity and ... -
Passive control and intermittent dynamics of the precessing vortex core oscillation in swirl flows
Swirl is used in modern gas turbine combustor nozzles to achieve reliable flame stabilization and efficient fuel-air mixing. The swirl component in the nozzle jet flow induces an axial vortex. At high swirl intensities, ... -
Sub-mesoscale modeling framework for woven fabrics using VAM-based geometrically-exact beam model
In this work, a novel sub-mesoscale model of woven fabrics is developed using nonlinear finite element methods. The main aim of the work is to develop a framework for modeling woven fabrics. The yarns are modeled as beam ... -
Adjoint-Based Aerodynamic Shape and Mesh Optimization with High-order Discontinuous Galerkin Methods
The aerodynamic shape of an aircraft plays a pivotal role in determining its overall performance. Aerodynamic Shape Optimization (ASO) involves systematically modifying the geometry to optimize the aerodynamic objective ... -
Ultrasonic Guided Wave-based Inspection of Additively Manufactured Components
Layered structural components, such as laminated composites and those made via Additive Manufacturing (AM), are widely used in aerospace and automotive industries due to their various advantages. The layer-wise approach ... -
Effect of Interface Roughness on Mechanical Strength of Adhesively Bonded CFRP Joints- Experimental and Numerical Studies
Composite materials are well known for their superior properties such as specific strength, specific modulus, tailor-ability in different directions, fatigue resistance, durability, low weight, and low thermal expansion. ... -
Design and Development of Novel Quadcopters for Reliable Operations in Cluttered Environments
This thesis presents innovative designs and control strategies for enhancing the performance and reliability of quadcopters, particularly in demanding and cluttered environments. The primary contributions include the ... -
Aeroacoustic Sources in Twin Turbulent Jets
An understanding of the aeroacoustics of twin turbulent jets is essential for applications involving noise reduction in dual engine aircrafts and launch vehicles. The aeroacoustic dynamics of these jets are influenced ... -
On the nature of transonic buffet in a finite span wing
Transonic buffet, or self-sustained shock oscillations caused by shock boundary layer interactions, creates lift and drag fluctuation on the wing of an aircraft. This aerodynamic instability limits the flight envelope of ... -
Asymptotic Modelling of Carbon Nanotube (CNT) and CNT-Reinforced Composite Structures Using Strain Gradient Formulations
Carbon nanotubes (CNTs) have garnered attention for their remarkable mechanical, thermal, and electrical properties, making them valuable in various applications. CNTs are particularly advantageous in aerospace structures ... -
Deformation-based Topological Lattices and their Edge States
Topological elastic metamaterials (TEMs) represent a novel class of elastic materials known for their unique ability to localize vibration energy at boundaries, maintaining robustness against system disorders. These ... -
On structure preserving numerical schemes for hyperbolic partial differential equations and multiscale kinetic equations
Natural phenomena are frequently represented through the formulation of differential equations, coupled with specific initial and boundary conditions. Many such models possess inherent structures that are crucial in ... -
A Class of Vector Fields for Path Following Guidance
With rapidly evolving application scenarios, Unmanned Aerial Vehicles (UAVs) are often desired to autonomously follow predefined paths. Prospective path following guidance methods should cater to the dynamic capability of ... -
Self-sustained oscillations in high-speed cylinder wake flows
Flow in the wake generated by a solid body presents an important class of problems in fluid dynamics, with wide ranging scientific implications and engineering applications. The present work investigates the structure and ...
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