Mechanical Engineering (ME): Recent submissions
Now showing items 1-20 of 387
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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 ... -
In-situ Tribological Experiments to Study - The Effect of Contact Stresses on Raman Scattering
This thesis presents the design, development, and validation of novel instruments that enable in situ micro-Raman spectroscopic measurements at mechanically loaded interfaces: an indentation apparatus for static loading ... -
Noise, Vibration and Harshness (Nvh) and Energy Efficiency Analysis of Lubricant Oils in Boundary Lubrication Using Force-controlled Tribometers
Tribological performance and the Noise, Vibration, and Harshness (NVH) characteristics of lubricants are critical to ensuring the durability and comfort of mechanical systems, especially under boundary lubrication. Despite ... -
Spatio-temporal Dynamics in Droplet Combustion Under Diverse Flow Conditions
Spray combustion of liquid fuels is one of the most ubiquitous modes of combustion used in a wide range of applications ranging from IC engines for transportation to Gas turbines in propulsion systems, owing to the high ... -
Modelling Cable-driven Continuum Robots and their applications
Flexible robots have been gaining traction in real-world applications over their rigid counterparts for their favourable features such as flexibility, compliance, better manoeuvrability, lightweight construction and ability ... -
Energy Loss in Elastic Plastic Low Velocity Impacrt In Presence of Electric Field
Impact phenomena are prevalent in various fields, including the impact between celestial bodies, particle dampers, sports mechanics, and granular media. Impacts between bodies often exhibit inelastic behaviour due to ... -
Insights on the Evaporation and Precipitation of Pathogen-Laden Respiratory Droplets on Inanimate Surfaces
Disease transmission via fluid ejections from infected individuals is a critical public health concern, particularly in high-risk environments like hospitals, public transport, restaurants, and schools. Respiratory droplets ... -
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 ... -
Self-propulsion in Pitching Airfoils
Self-propelled oscillating foils are simple yet useful models that can be used to explore the physics of oscillatory bio-locomotion. In this investigation, we explore the self-propulsion characteristics of a rigid NACA0015 ... -
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 ... -
Mechanisms and mechanics of mixed-mode (I/II) fracture of magnesium alloys
Magnesium alloys are considered as a desirable substitute for aluminium alloys in automotive structural components due to their high strength-to-weight ratio which is crucial for improving vehicle performance and fuel ... -
In situ analysis of large strain deformation in tool-workpiece contacts
Large strain plastic deformation is central to manufacturing operations like metal cutting, rolling, and extrusion. Standard approaches for describing and understanding this deformation, such as analytical methods, numerical ... -
Experimental and Numerical Studies of Multiturn Multiplane Pulsating Heat Pipes
Embargo up to 15/1/2027 A Pulsating Heat Pipe (PHP) is a wickless meandering capillary tube bent back and forth parallel to itself. PHPs are classified into single and multiturn, closed-loop and open-loop. A single loop ... -
Aerobreakup of a Polymeric Droplet
Aerobreakup of a liquid droplet refers to the process of breaking the droplet into smaller fragments by subjecting it to a sufficiently high-speed stream of gas (generally air). This process lies at the core of various ... -
Multifunctional Biomaterials based on Polyacrylamide/Hydroxyapatite for magnetic biosensing and Musculoskeletal Repair
The development of advanced nanocomposites for musculoskeletal repair represents a significant leap in biomedical engineering. These nanocomposites leverage the properties of hydrogels and hydroxyapatite (HAP) to address ... -
Modeling of Supercritical Carbon Dioxide Centrifugal Compressors for Brayton Power Cycles
Due to several perceived advantages, supercritical Carbon dioxide (sCO2) cycles are viewed as potential replacements for steam-based power generation. Their successful deployment depends on several factors - one important ... -
Dynamically isotropic Gough-Stewart platform for micro-vibration isolation in spacecraft
Rotating components such as reaction wheels and momentum wheels on spacecraft generate micro-vibrations up to 250 Hz during on-orbit operations. While the use of Gough-Stewart Platforms (GSPs) for six degrees of freedom ... -
Emergence and Propagation of Aerodynamic Instabilities in Centrifugal Compressors with Vaned Diffusers: Effect of Solidity and Stagger
Centrifugal compressors are widely employed in turbochargers and small gas turbines due to their ability to achieve high compression per stage. These compressors consist of a rotating impeller and a static diffuser, which ... -
Role of Crosslinks and Fiber Reinforcement in Hydrogel Mechanics
Hydrogels are soft materials that exhibit nonlinear mechanical behavior under large deformations but can fail catastrophically, limiting their applications. Developing tough, biocompatible hydrogels with high strength and ... -
Investigations on Radial Inflow Turbine for Supercritical CO2 Power Cycles
Potential of using supercritical CO2 (sCO2) as a working fluid for the next generation of thermal power plants is being actively pursued by researchers across the world. CO2 has a critical temperature of 31.1 °C and a ...