Division of Mechanical Sciences
Recent Submissions
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Effects of solar and geomagnetic activity on stratospheric temperatures
This thesis comprises analytical investigations of temperature variations in the 21–60 km altitude region related to solar and geomagnetic activity. The analyses have been carried out using Meteorological Rocket Network ... -
Studies on effects of solar and geomagnetic activity on mesospheric temperature
This thesis comprises analytical and experimental investigations of the mesosphere, specifically the altitude region 50–90 km. The analytical work consists of correlation analyses of mesospheric temperature data from ... -
Electrochemical - Morphological Evolution of the Positive Electrode in Autonomous Soluble Lead Redox Flow Batteries
The world is witnessing a transition where reliance on renewable energy is increasing. As of 2025, the renewable electricity capacity has risen to roughly 5000 GW (from 2000 GW in 2010). This progressive growth is to be ... -
Flexible Nanostructured Hydrogen Sensors
Hydrogen is rapidly emerging as a key energy carrier and industrial feedstock in the global transition to cleaner energy systems. However, due to its high diffusivity and flammability, even minor leaks can result in ... -
On High-Speed Curved Compression Ramp Air Intakes
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, ... -
Global Retrieval of Aerosol Absorption Using Multi-Satellite Retrieval: Algorithm Development And Performance Evaluation
Aerosol absorption, quantified by single scattering albedo (SSA), is an important parameter for assessing the climatic impact of aerosols. While there are several satellites providing aerosol optical depth (AOD), the ... -
Harnessing Packed-bed Biofilm Reactors for High-rate Saline Nitrification: An Innovative Application for Intensive Recirculating Aquaculture Systems
Saline effluents containing ammonia are generated by various human activities, including aquaculture, food processing, chemical industries, landfilling, etc. necessitating treatment to mitigate environmental harm. The ... -
Bay of Bengal Circulation Features at Different Spatio-temporal Scales
The Bay of Bengal is a semi-enclosed tropical basin shaped by monsoon winds and massive freshwater input, producing a warm, low salinity, stratified upper ocean with a shallow mixed layer and a thick barrier layer in the ... -
Compressive behavior of continuous fiber polymer composites in the presence of process-induced defects
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. ... -
Multi-Agent Coordination using Convex Formations and Binary Tree Structures
Multi-agent systems are increasingly deployed in missions involving large-scale tasks with complex objectives that are beyond the capability of a single agent. Such missions demand computationally efficient coordination ... -
Elastic Wave Propagation in Textured Polycrystalline Media
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 ... -
VENTURI STUDIES WITH WATER ON CAVITATIOK INCEPTION CAVITY CHARACTERISTICS AND CAVITATION EROSION BEHIND BLUFF BODIES
Cavitation is defined as the formation, growth and collapse of vapour or gas? and vapour?filled bubbles in a liquid subjected to reduced pressures (of the order of the vapour pressure of the liquid) at constant ambient ... -
The use of dual quaternions in rigid body motion interpolation and visualization
Dual quaternions are an excellent alternative tool to transformation matrices in the study of rigid body motion. They are known to represent the position and orientation of a rigid body in a concise and efficient manner, ... -
Interface capturing in multiphase flows using finite volume based level set method
An important class of problems involves a substance transforming from one phase to another with absorption or emission of energy. Such cases arise in many settings, of which melting, solidification, condensation, and ... -
Constrained least squares finite element formulation of two-dimensional elastodynamic problems
In the present work, a least?squares finite element formulation for two?dimensional elastodynamic problems is developed. This development is based on an earlier formulation reported by Pratap. The earlier formulation was ... -
Experimental study of endwall flow in a compressor cascade
Improvement in calculating methods for end?wall boundary layers of blade rows can only come about by a greater understanding of the physics of the flow from which realistic models can be built of the terms that go into ... -
Electronic signal processing in laser doppler annemometry
The three commonly used electronic processors for laser Doppler anemometer systems are the spectrum analyser, the frequency tracking demodulator and the period timing device. Extensive analytical studies on spectrum analyser ... -
Boundary layer transition with and without lateral divergence
Information on the transition processes in turbomachine boundary layers is important in computing schemes for predicting blockage, flow losses, separation, etc. Actual transition on turbomachine blades does not conform to ... -
An Experimental Study On The Scale Effects In Cavitation Noise
Cavitation noise studies were made in a water tunnel with particular reference to scale effects. Travelling?bubble cavitation was artificially generated on four axisymmetric bodies of the Schiebe head?forms with varying ...
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