Division of Mechanical Sciences: Recent submissions
Now showing items 41-60 of 2070
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Flow characteristics of rectangular and trapezoidal finite crest... ..weirs
This thesis presents an extensive and systematic study of the free and submerged flow characteristics of rectangular and trapezoidal finite crest width weirs and triangular profile weirs. Aspects studied include the ... -
Studies on characteristics of cavity and cavitation damage behind circular cylinders in water with a venturi
Cavitation is a complex hydrodynamic phenomenon involving the appearance, growth and collapse of vapour- and/or gas-filled bubbles. During the collapse phase, it generates forces sufficient to erode even the strongest ... -
Finite difference modelling of ground water flows
The thesis presents several studies on finite difference modelling of groundwater flow systems. The studies include: (i) Development of an efficient computational algorithm for nonrectangular flow domains; (ii) Comparative ... -
Characteristics, correlations similarities and prediction of erosion due to cavitation and liquid impingment, Ph.D. Thesis
Erosion due to cavitation and liquid impingement is a common type of wear that occurs in a variety of engineering equipment, structures, and devices, such as: Hydro turbines Pumps Steam turbine blades Diesel engine cylinder ... -
Effect of particles on nonequilibrium relaxation phenomena in high temperature gas-nozzle flows
This thesis presents an exhaustive study of the effects of solid particles on the relaxation phenomena of various nonequilibrium processes, such as vibrational, dissociation and ionization, of the gas phase at high temperature ... -
Experimental study of sudden expansion in pipe flow
An Experimental Study of Sudden Expansion in Pipe Flow Flow through a sudden expansion, though the simplest and perhaps the earliest problem of fluid flow separation, still leaves much to be understood. The sudden expansion ... -
Development and application of a new method for detection of structural equivalence in graphs
This thesis mainly concerns the isomorphism problem encountered in computerized structural synthesis of kinematic chains. The contributions of the thesis to the study of structural aspects of linkages are the following. 1. ... -
Holographic interferometric study of natural convective heat transfer in vertical rectangular enclosures
Natural convective flows, induced by buoyancy forces on the fluid, in rectangular enclosures are important in many engineering applications such as thermal insulation of buildings, double-glazed windows and in flat plate ... -
Numerical studies of some non-linear problems in fluid mechanics
The problem of flow around a circular cylinder has long attracted the attention of many research workers because of its many practical applications and exciting mathematical features. This thesis contains the results of ... -
Two dimensional modelling of annular two phase flow
A two-dimensional model for analyzing annular two-phase flow through tubular geometry, based on the solution of continuity, momentum, and energy equations, is presented. The numerical approach employed is an adaptation of ... -
Geometric modeliing using slice representation
The thesis addresses mainly two issues in geometric modeling, high-level modeling techniques and reconstruction. High-level modeling techniques essentially include boolean operations on objects with same as well as different ... -
Experimental studies on travelling bubble cavitatin noise
An effectively controlled uniform travelling bubble cavitation was made possible at almost all freestream conditions by seeding the flow with artificial nuclei generated by electrolysis within the boundary layer of three ... -
Stress analysis of spinning discs and shells
This thesis is concerned with the stress analysis of isotropic and orthotropic spinning discs and shells. The shell geometries considered in this thesis are: spherical shallow shell, conical shell, and cylindrical shell. ... -
Extended finite simulations of cohensive crack propagation under mode-3 loading
Modeling of propagating discontinuities (cracks) is a challenging problem in the field of computational mechanics. Numerical techniques such as Finite Difference Method (FDM), Boundary Element Method (BEM), and Finite ... -
Lossless collisions and complex behaviour in simple impacting systems
Humans have always tried to take cues from the animal kingdom, incorporating ideas into their creations, either w ith an intention o f devising a new one or making the existing ones better. Animal locomotion not only ... -
Stability of unbounded and bounded granular shear flows
Recent computer simulations of granular flows (Hopkins & Louge 1991; Goldhirsch, Kui & Zanetti 1993) have identified an interesting picture of cluster formation. In this thesis, we have attempted to explain particle ... -
Thin film flows : integral methods and experiments on the circular hydraulic jump
This work is an integral analysis of radial and planar thin liquid film flows and an experimental study on the circular hydraulic jump on a circular horizontal plate. These thin film flows are obtained either by the ... -
Towards the concepts of hydrodynamic cavition control
A careful study of the existing literature available in the field of cavitation, reveals the potential of ultrasonics to be used as a tool for controlling and, if possible, eliminating hydrodynamic cavitation through the ...