Division of Mechanical Sciences: Recent submissions
Now showing items 1621-1640 of 1894
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A Study Of Four Problems In Nonlinear Vibrations via The Method Of Multiple Scales
(2010-12-03)This thesis involves the study of four problems in the area of nonlinear vibrations, using the asymptotic method of multiple scales(MMS). Accordingly, it consists of four sequentially arranged parts. In the first part ... -
Experimental Investigation Of Hypersonic Boundary Layer Modifications Due To Heat Addition And Enthalpy Variation Over A Cone Cylinder Configuration
(2010-12-01)Despite years of research in high speed boundary layer flow, there is still a need for insightful experiments to realize key features of the flow like boundary layer response to different conditions and related transition ... -
Dynamic Response Of A Satellite With Flexible Appendages And Its Passive Control
(2010-11-25)Most present day spacecrafts have large interconnected solar panels. The dynamic behavior of the spacecraft in orbit can be modeled as a free rigid mass with flexible elements attached to it. The natural frequencies of ... -
Changes In The Duration-Depth Characteristics Of Indian Monsoon Rainfall During 1951-2000
(2010-11-22)Several previous studies have found that various characteristics of the Indian monsoon rainfall have shown secular changes over the past century. In this study, using a gridded (1degree) daily rainfall dataset, we analyse ... -
A Variable Resolution Global Spectral Method With Finer Resolution Over The Tropics
(2010-11-19)Variable resolution method helps to study the local scale phenomenon of interest within the context of global scale atmosphere/ocean dynamics. Global spectral methods based on spherical harmonics as basis functions are ... -
Aerosol Absorption And Source Characteristics Over Different Environments
(2010-11-02)Extremely fine liquid droplets or solid particles, those remain suspended in the air, are known as aerosols. They are produced by natural sources and anthropogenic activities. Several types of aerosols produced by different ... -
Effect Of Atomic Mobility In The Precipitate Phase On Coarsening : A Phase Field Study
(2010-10-28)In this thesis, we have used a phase field model for studying the effect of atomic mobility inside the precipitate phase on coarsening behaviour in two dimensional (2D) systems. In all the available coarsening theories, ... -
Guidance Laws For Impact Angle Constraints And Exo-Atmospheric Engagements
(2010-10-22)This thesis deals with development of guidance laws for advanced applications. Two class of guidance problems, namely, impact angle constrained guidance and pulsed guidance for exo-atmospheric engagements, are considered ... -
Vibration And Impact Induced Sound
(2010-10-22)Sound generated by impacting structures is of considerable importance in noise control. Sound is generated by a vibrating structure by inducing pressure fluctuations in the surrounding medium. Impact induced noise is the ... -
Premixed Turbulent Combustion Of Producer Gas In Closed Vessel And Engine Cylinder
(2010-10-22)Producer gas derived from biomass is one of the most environment friendly substitutes to the fossil fuels. Usage of producer gas for power generation has effect of zero net addition of CO2 in atmosphere. The engines working ... -
A Magnesia Based Sustainable Method For De-Fluoridation Of Contaminated Groundwater
(2010-10-14)Groundwater is a major and sometimes lone source of drinking water worldwide. The chemical composition of groundwater is a combined product of the composition of water that enters the aquifer and its reaction with various ... -
Optimum Design Of Retaining Structures Under Static And Seismic Loading : A Reliability Based Approach
(2010-10-14)Design of retaining structures depends upon the load which is transferred from backfill soil as well as external loads and also the resisting capacity of the structure. The traditional safety factor approach of the design ... -
Seismic Response Of Geosynthetic Reinforced Soil Wall Models Using Shaking Table Tests
(2010-10-14)Use of soil retaining walls for roads, embankments and bridges is increasing with time and reinforced soil retaining walls are found to be very efficient even under critical conditions compared to unreinforced walls. They ... -
Concrete Fracture And Size Effect - Experimental And Numerical Studies
(2010-10-14)Most materials including concrete have pre-existing flaws or defects. The fracture energy of concrete is a basic material property needed to understand fracture initiation and propagation in concrete. Whether fracture ... -
Reactive Hot Pressing Of ZrB2-Based Ultra High Temperature Ceramic Composites
(2010-10-08)Zirconium- and titanium- based compounds (borides, carbides and nitrides) are of importance because of their attractive properties including: high melting temperature, high-temperature strength, high hardness, high elastic ... -
Accurate Computational Algorithms For Hyperbolic Conservation Laws
(2010-10-08)The numerics of hyperbolic conservation laws, e.g., the Euler equations of gas dynamics, shallow water equations and MHD equations, is non-trivial due to the convective terms being highly non-linear and equations being ... -
Defluoridation Of Drinking Water Using A Combined Alum-Activated Alumina Process And Nanoscale Adsorbents
(2010-10-08)Excess Fluoride in drinking water is a cause for concern in several countries in the world. Various techniques have been developed to mitigate the harmful effects of fluoride. In the present work, a combined alum and ... -
An Assessment Of The Simulation Of Monsoon And Inter Tropical Convergence Zone In Coupled Ocean-Atmosphere Models
(2010-10-08)Monsoons and Intertropical Convergence Zones (ITCZ) exhibit variability at various temporal and spatial scales. The temporal scale of variability encompasses scales from the intraseasonal through interannual to interdecadal ... -
Study Of Evaluation Of Texture And Microstructure During Different Modes Of Rolling And Annealing Of Two Phase α-β Brass
(2010-09-28)It is well known that texture and microstructure play a crucial role in determining properties of metallic materials. The evolution of microstructure and texture during deformation and annealing of copper and some copper ... -
Impact Assessment Of Climate Change On Hydrometeorology Of River Basin For IPCC SRES Scenarios
(2010-09-28)There is ample growth in scientific evidence about climate change. Since, hydrometeorological processes are sensitive to climate variability and changes, ascertaining the linkages and feedbacks between the climate and the ...