Browsing Mechanical Engineering (ME) by thesis submitted date"2025"
Now showing items 1-17 of 17
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A Capillary-fed Evaporative Microthruster for Micro/Nano Satellites
Small satellites offer a unique platform for short-term and low-cost communications and surveillance missions. They are essential for, scientific research, and technology demonstration due to their ability to provide rapid ... -
Contact Line Instabilities in Thin Film Flows on Curved Surfaces
Thin fluid film flows are ubiquitous in nature and many industrial applications. Such flows are characterized by having the thickness in one direction being much smaller than the characteristic length scales in the ... -
Coupled vibro-acoustics of an unbaffled plate
In this work, that falls largely in the realm of applied mathematics, we consider a fluid-loaded finite simply-supported rectangular unbaffled plate with the following objectives: a) to derive a closed form mathematical ... -
Design of Structures and Mechanisms using Topological Derivatives and Exploration of 4D-printed Shape Morphing Structures
We employ topological derivatives to design supports for stiff structures and compliant mechanisms along with exploration of design features for 4D-printed shape-morphing structures. Topological derivative (TD) has been ... -
Development of a novel LPG/PNG domestic burner for high efficiency and low emissions
Domestic cooking is one of the basic human needs, and cookstoves based on fuel combustion are widely used. LPG (Liquified Petroleum Gas) is the most common cooking fuel, followed by PNG (Piped Natural Gas), which has an ... -
Development of a Planar Robotic Platform with Localized Magnetic Actuation and its Applications for Untethered Ferromagnetic Robots and Shape-morphing Compliant Robots
This thesis focuses on the development of a solenoid-grid-based setup for independent planar actuation of multiple ferromagnetic robots referred to as ferrobots, by locally varying the magnetic field in different regions ... -
Development of Specialised Tribometer for Advanced Tribosystem Evaluation
This thesis presents a comprehensive study on the development and validation of force-controlled tribometers to accurately evaluate tribo-contacts under realistic test conditions. The research addresses the gap in conventional ... -
Electrohydrodynamics of a Viscoelastic Drop
The behavior of a drop in electric fields is critical for diverse natural and industrial applications, including inkjet printing and electrohydrodynamic atomization. This complex phenomenon is governed by the balance of ... -
Evaluation of Air Blast Swirl Injector: Flow-Field Hybrid RANS-LES Studies And Coupling With RANS Spray Characterization Colligating Global Combustor Characteristics-A Novel Exploration
The injector plays a critical role in combustion efficiency, flame stability, ignition, and combustor exit profile. The protocol of designing future engines meeting the requirements of lower emissions, noise, and the use ... -
Fracture and indentation behavior of shape memory alloys
Shape memory alloys (SMAs) are metallic systems capable of recovering large strains, typically in the range of 7 to 10%. A clear understanding of the fracture behaviour of SMAs is crucial to prevent failures, especially ... -
Investigation of Consolidation Methods for Developing Load-bearing Structures from Lunar and Martian Regolith Simulants
Lunar and martian surfaces provide ideal candidates for establishing extra-terrestrial human settlements, given their proximity to the earth and potential for harbouring water. Significant recent research has focused on ... -
One-domain simulation of fluid flow and heat transfer in the conjugate porous-clear media
In this thesis, based on generalized porous flow model, we present a one-domain framework for the simulation of incompressible flow in superposed clear and porous media. The continuous change in the characteristics of the ... -
Particle-laden Rayleigh-Benard convection
Particle-laden flows are ubiquitous in nature and industries. For example, water droplets in clouds, fine dust particles in strong winds leading to dusty storms, dunes, ejection of solid particles and ash during volcanic ... -
Passive Interfacial Evaporation-based Thermal Desalination Systems
Desalination offers a promising solution to the global water shortage by utilizing the vast resource of seawater. With 26% of the world’s population lacking access to potable water currently, there is a growing need to ... -
Rotary atomization of non-Newtonian liquids for Spray drying applications
Food wastage poses a significant threat to the nation’s food supply and safety due to inadequate storage infrastructure and logistics facilities. This study explores the potential of spray drying as a viable solution to ... -
Single and twin liquid jet injection in crossflow: Influence of Mach number and jet spacing
Supersonic air-breathing engine development towards hypersonic vehicles is challenging due to flow complexities arising from compressibility effects. In these engines, the incoming crossflow air enters the combustor at ... -
Understanding failure in heterogeneous materials
The failure of heterogeneous materials is a practical problem that occurs in several diverse applications. Material heterogeneity can arise from porosity (e.g., due to some processing history), variation in continuum-scale ...