Division of Mechanical Sciences: Recent submissions
Now showing items 61-80 of 1912
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Poleward propagating Tropical Intraseasonal Oscillations over the Indian Ocean
The mechanisms of poleward propagation of tropical intraseasonal oscillations (ISOs) are not well-understood. In this thesis, we investigate this issue for two such tropical ISOs over the Indian Ocean, namely, the Boreal ... -
Role of equatorial convection and moisture in the structure and propagation of Boreal Summer Intraseasonal Oscillations
Boreal Summer Intraseasonal Oscillation (BSISO) is the dominant mode of tropical variability during Boreal summers. BSISO is manifested by northward propagation of the Maximum Cloud Zone (MCZ) from the warm equatorial ... -
A geochemical and Ca-Sr-Nd isotopic study of glacial diamictites, loess and saprolites to understand crustal growth and silicate weathering
Earth is the only rocky planet in the Solar System with a compositionally evolved (felsic) continental crust. This incompatible element enriched layer is dominantly formed by extraction of melt from the upper mantle leading ... -
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. ... -
Examining Climatic Response, Vulnerability and Adaptation in Rural Indian Dwellings to Climate Change: Case studies in three climatic zones
Buildings have evolved traditionally based on local resources and skills. They predominantly relied on passive climate-response mechanisms to provide indoor comfort. However, contemporary buildings, made primarily of bricks, ... -
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 ... -
Computational Approaches to Engineering Antibody Responses to HIV
Efforts are underway to devise interventions that would control HIV infection without the need for lifelong antiretroviral therapy. A key strategy involves the elicitation of endogenous antibodies that can neutralise diverse ... -
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 ... -
Adaptation and Characterization of Fossilized Hydrocarbon Gas Turbine Combustor for Operation with Green Fuel(s): Experimental and Numerical Investigation
Decarbonizing energy conversion systems necessitates the adaptation of conventional fossil-fuel-based systems, which have been designed and optimized over the past century for operation with fossilized hydrocarbons, to ... -
Contaminated Site Investigation and Remediation Using Modified Nano Zero Valent Iron Particles
Rapid industrialization has boosted economic growth but also increased contaminants in air, water, and soil. Improper disposal of municipal solid waste and industrial effluents has rendered many groundwater sources unfit ... -
Foaming of Surface Waterbodies: A Comprehensive Study on Causes, Persistence, Seasonality, and Mitigation Strategies
Foaming waterbodies have emerged as a significant global concern due to their adverse effects on aquatic ecosystems, offensive odour emissions, disruption of daily activities in nearby areas, and visual unpleasantness. ... -
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 ... -
Late Cenozoic climate reconstruction from the Northern Indian Ocean using foraminiferal clumped isotope thermometry and stable isotope technique
The Late Cenozoic era (23.03 million years ago to the present) offers a critical time window to examine the role of greenhouse gases, notably CO2 (ranging between 910 ppm and 180 ppm), in the operation of Earth's system ... -
Thermochemical Conversion of Lignocellulosic Biomass to Generate Hydrogen Rich Synthesis Gas for Hydrogen Production: An Experimental and Thermodynamic Study Using Oxy-Steam as The Gasification Agent
Hydrogen can help decarbonize and bring a paradigm shift in the global energy mix. Green hydrogen, with its potential to mitigate carbon emission, offers an inexhaustible supply – free from the constraint of finite reserves. ... -
Monte Carlo Simulations With Novel Sampling Variance Reduction Schemes For Structural Reliability Estimation
The work reported in this thesis is in the area of computational structural reliability modelling. The primary focus of the study is on the estimation of structural reliability using Monte Carlo simulations with sampling ... -
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 ... -
Supporting Concept Representation, Synthesis, and Analysis of Multi-state Mechanical Devices
‘Design’ is a means of changing existing situations into preferred ones. The engineering design process has been broadly classified into four stages: task clarification, conceptual design, embodiment design and detail ... -
Modeling and Experimental Studies on Nucleation & Growth of Crystals Using Super-Cooled Liquids
Crystallization of active pharmaceutical ingredients (APIs) is a critical processing step in the pharmaceutical industry. It traditionally involves supercooling mother liquor in jacketed vessels to induce crystallization ... -
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 ... -
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 ...