Division of Mechanical Sciences: Recent submissions
Now showing items 81-100 of 2078
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Steady two-dimensional seepage flow analysis analytical and numerical methods
The primary aim of the present work is to study the influence of sloping boundaries with discontinuities in slopes and the effect of surfaces of seepage on seepage characteristics in case of confined and unconfined flows ... -
Entertainment co-efficient surface jet
The thesis presents the results of an experimental study on the entrainment coefficient of a circular non-buoyant surface water jet discharging into quiescent ambient water. The thesis consists of seven chapters. Chapter ... -
Nurbs-Based Mesh-Free and Finite Element Methods in Computational Mechanics
A family of new mesh-free and mesh-based methods is developed and explored in the context of linear and nonlinear boundary and initial value problems of typical interest in engineering mechanics. A common feature in these ... -
Phase transitions of fluids confined in nanopores
Confined nanoscale fluids occur in many technologically important phenomenon such as boundary lubrication, adsorption, adhesion and catalysis. Fluids confined at these length scales are spatially inhomogeneous and fluid ... -
Linear stability analysis of fluid flow adjacent to a flexible surface
Fluid flow adjacent to a flexible surface is often encountered in biological systems and bio-technological processes. These flows have been analyzed using models similar to those for the flow past a rigid surface, but the ... -
Studies of instabilities in particulate suspensions
The focus of this project is to study the dynamics of particulate suspensions. This study is divided into two parts. Part one focuses on the dynamics of self-propelled particles, such as microorganisms. The dynamics of ... -
Frictional-kinetic models for steady cohesionless granular flow through a wedge-shaped hopper
The present work attempts to combine a newly developed kinetic constitutive theory with an older frictional theory to model.the two-dimensional gravity flow of a cohesionless granular material such as sand through a ... -
Similar solutions in nonequilibrium nozzle flows
The phenomena of thermal and/or chemical nonequilibrium in flowing gases at high temperatures is of fundamental importance in rocket nozzles as well as hypersonic flight simulation facilities. The present state-of-the-art ... -
Role of subsurface flows in the ignition of liquid fuel pools-a theoretical study
The work is a theoretical study on the ignition of a pool of liquid fuel at subflash temperatures under the action of localized ignition sources. While a few experimental results are available in the literature, no theoretical ... -
Bursting phenomenon in turbulent flows
The importance of the phenomenon of bursts in turbulent shear layers has been recognised by fluid dynamicists during the past few years. Kline et al. (1967), Corino & Brodkey (1969), and more recently Grass (1971) noticed ... -
Lifted laminar diffusion flames-experiments and analysis.
Experiments on axisymmetric and two-dimensional lifted laminar diffusion flames have been conducted to obtain the height of lift as a function of flow parameters. The results are correlated on the basis of simple dimensional ... -
Parametric analysis of fully developed turbulent Wall jets
From an examination of all available data on wall jets, it is concluded that at distances sufficiently far downstream from the slot, a fully developed state of the flow can be identified, where the details of the initial ... -
Modulation of Metal Fluxes and their Isotope Ratios in the Ganga (Hooghly) Estuary
This thesis aims at constraining the impact of estuarine processes on the net riverine fluxes of select metals and their isotopic composition to seawater. I studied the Ganga (Hooghly) River estuary, a monsoon-dominated ... -
Robust and Accurate Kinetic Schemes based on Flexible Velocities for Compressible Flows
Kinetic theory based schemes offer a unique approach to numerically solving the hyperbolic nonlinear Euler equations. These methods start with the Boltzmann equation as the governing equation at the kinetic level and then ... -
Machine Learning Methods for Soil property prediction using VNIR and MIR Spectroscopy
Soil plays a key role in food security, freshwater regulation, biodiversity and climate mitigation. Soil intersects directly or indirectly with at least seven of the United Nations Sustainable Development Goals. Among the ... -
Structure and Polar Properties of SrTiO3-xNa0.5Bi0.5TiO3 Ferroelectric System
Ferroelectric materials exhibit interesting dielectric and piezoelectric properties. While for over six decades, lead-zirconate titanate (PZT) has been the most sought after piezoelectric material for actuator, transducer, ... -
Improving Mechanical Properties and Self-Healing by Dynamic Bonds at Interface in Carbon Fiber Reinforced Epoxy Laminate and its Recycling
Carbon fiber-reinforced epoxy (CFRE) laminates have revolutionized aerospace engineering due to their exceptional strength-to-weight ratio, corrosion resistance, and design flexibility. However, challenges such as weak ... -
Some studies on resistance to flow in rigid bed open channels
This thesis embodies the results of the investigations carried out by the author on the problem of resistanc-e to flow through open channels. Based on these> the author was able to modify Manning's formula, so as to ... -
Prediction of cavitation damage
A theory which gives a unified picture of (1) the bubble collapse, (ii) the transmission of the collapse pressure, and (iii) the deformation of the material due to the work done by the bubble is proposed, incorporating ... -
Studies on air entrainedflow
The important factors affecting air entrainment by flowing water are found to be slope and roughness. Results showing the effect of slope, length of the chute, side wall, and different conditions of roughness are presented ...