Division of Mechanical Sciences
Recent Submissions
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Studies on flow past pipe disturbances with Hagen Poiseuille approach flow
The problem of flow past disturbances in circular pipes has wide engineering applications. Most available information pertains to turbulent approach flow. In this thesis, the effects of disturbances in circular pipes are ... -
Chracteristics of self-aerated flows
A characteristic of high-velocity open channel flows is the phenomenon of self-aeration, in which atmospheric air is entrained into and mixed with the flow, creating the appearance of white water. This phenomenon is ... -
Division of flow in open channels
This thesis deals with the problem of division of flow when a branch channel bifurcates from a main channel. The effects of both the angle of off-take and the relative widths of the main and branch channels are considered. In ... -
Inception of cavitation
Cavitation due to flow separation may occur at pressures higher than the vapor pressure (e.g., where PwP_wPw? is the measured pressure in the cavity and PvP_vPv? is the vapor pressure at the corresponding temperature). The ... -
Separation control in diverging channels
The work presented herein consists of the separation control methods to minimize losses and recover as much velocity head as possible after the divergence in a straight-walled diverging channel in the subcritical flow ... -
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 ... -
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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 ...

