Division of Mechanical Sciences: Recent submissions
Now showing items 81-100 of 2361
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General procedure for evaluation of crack closure integral in problems of fracture mechanics
Fracturebased design procedures ensuring safety in the presence of cracks, which cannot be detected with hundred percent reliability by NonDestructive Testing (NDT) methods, have become essential for aerospace and many ... -
Study of some three dimensional effects in bolted joints
Joints are essential to connect parts of structural components and to interconnect subassemblies of largescale structural systems. Various types of structural joints are used in technological practice; among these, bolted ... -
Numerical simulation of a plane "Canonical" mixing layer using a vortex sheet model
A novel method for computing mixinglayer flow in the limit of infinite Reynolds number using a twodimensional vortexsheet technique is presented here. The method computes the evolution of the sheet by dividing it into ... -
Boundary restaint effects and correction ruler for two-dimensional separated flow past bodies.
It is now recognized that considerable uncertainties and inadequacies exist in methods for effecting blockage or boundaryrestraint corrections in wind and water tunnels. These factors have led to the search for alternative ... -
Energy balance growth
The problem of predicting residual strength of sheet metal construction is of considerable importance in damage-tolerant or fail-safe design of aircraft. The phenomenon of stable crack growth prior to fracture instability ... -
Study of mean velocity profiles in three-dimensional incompressible turbulent boundary layers
This thesis is concerned with the description of mean velocity profiles in three-dimensional incompressible turbulent boundary layers. The principal features of the study are an examination of the Preston tube technique ... -
Polysaccharide-based investigations into the surface chemistry of some sulphide and hydrophobic minerals and processing of a complex sulphide ore
The gradual depletion of high grade ores and the fine dissemination of values, together with the complex mineralogy of lean grade samples, has made it imperative to develop innovative technologies for their processing. The ... -
Kinetics of size reduction and associated wear of grinding media
Ball milling is an important step in mineral processing to liberate the locked minerals from ore. During milling, the media undergo extensive wear due to abrasion and impact. Corrosion acts synergistically to increase the ... -
Analytical And Experimental Studies On Effect Of Bends In Engine Manifolds On The Gas Exchange Phenomena
Factors which influence the gas?exchange processes are numerous and inter?related in a complex manner. In the analytical formulations proposed by earlier investigators to examine gas?exchange phenomena, the inlet and exhaust ... -
Transonic flow in a rotating turbine cascade of large pitch to chord ratio.
A rotating turbine cascade was designed to simulate the nearly two dimensional flow past a flat plate turbine cascade of large pitch to chord ratio. The turbine was tested in the transonic flow range for flow incidence ... -
Analysis of heat transfer in the forehearth in glass melting.
This work is a computational study of the interaction between conductive, convective, and radiative modes of heat?transfer phenomena in molten glass as it flows through the forehearth unit in a glass tank furnace. Since ... -
Investigation of a mixed flow immpeller.
Investigations have been conducted on a mixed?flow impeller to provide basic information for use in the design of high?specific?speed pumps. Such pumps are widely used for cooling?water duties in thermal power stations in ... -
Experimental and numerical investigation of localized necking in aluminium alloy tubes during hydroforming
Metal forming is an important technological operation in manufacturing, particularly in the automotive industry. Several components are shaped by sheet?metal forming, tube hydroforming, and bending processes. With advancements ... -
Mechanics and Mechanisams in Fretting Damage for Stainless Steel and Chromium Carbide Coatings
Fretting is of serious concern in many industrial components, especially in the nuclear industry, for the safe and reliable operation of various components and systems. Although considerable efforts have been made to ... -
Casing boundary layers in a multistage axial compressor
The casing boundary layers strongly influence the performance of axial?flow compressors. Computational theories exist for calculating casing?wall boundary?layer growth, and although they are relatively successful in helping ... -
Study of diffusers with relation to high speed contrifugal compressors
The working range of high?speed centrifugal compressors, where the flow at exit from the impeller is supersonic, is very narrow. This narrow range is attributed to the performance of the diffusers that follow the impeller. ... -
Design And Synthesis of Band Gap Engineered Conjugated Molecules For Organic Electronics
Research in conducting polymers in the area of optoelectronics has expanded enormously and diversified into organic photovoltaics (OPV), organic light?emitting diodes (OLED), organic field?effect transistors (OFET), etc. ... -
Studies on transverse fin tube heat exchangers
This thesis presents an investigation of heat?transfer and pressure?drop characteristics of tubes with parallel fins (straight and inclined) placed concentrically inside an outer pipe through which air is flowing. Experimental ... -
1Some studies on experimental viscosity of refrigerant vapors R12, R14, R22 and R114 and their mixtures at elevator temp. & pressure pt2
The present investigation has been undertaken using two oscillating?disc viscometers. The first viscometer is a modified version of an earlier model to suit refrigerant vapours at pressures up to five atmospheres and ambient ...