The two-dimensional flow-field through the stationary blade row of a radial inflow turbine in a torque converter was analysed by means of a potential flow model and a viscous flow model. The purpose was to compare the ...

ENGLISH ABSTRACT: One of the main challenges in using the Discrete Element Method (DEM) is to specify the correct input parameter values. In general, the models are sensitive to the input parameter values and accurate ...

ENGLISH ABSTRACT: Cooling tower inlet losses and effective flow diameter under no crosswind conditions and the pressure distribution around a circular cylinder subjected to a crosswind are modelled using CFD. The CFD ...

ENGLISH ABSTRACT: An accurate description of the atmospheric boundary layer (ABL) is a prerequisite for computational fluid dynamic (CFD) wind studies. This includes taking into account the thermal stability of the ...

ENGLISH ABSTRACT: The purpose of this project is to investigate the method and accuracy of simulating axial ow fans with three-dimensional axisymmetric CFD models. Two models are evaluated and compared with experimental ...

Three SunSlates™ were investigated to predict the performance of a fully installed system. The three slates were mounted on a fixed tilt of 30°, but with different orientations. The tilt is close to latitude of the ...

ENGLISH ABSTRACT: Silicone-rubber was investigated and its mechanical behaviour was characterised. Uni-axial tensile tests were conducted on two different sample geometries: rectangular flat strip and dumbbell shaped. ...

ENGLISH ABSTRACT: Star sensor systems provide extra accuracy to the attitude determination and control systems of spacecraft These systems are generally complex and costly. This text describes the development of a low ...

ENGLISH ABSTRACT: In recent scientific endeavours, such as the Square Kilometre Array (SKA) project, significant attention (and funding) is being allocated to the design and analysis of radio telescope antenna systems, ...

This work is concerned with the design and hydrodynamic aspects of a hydrofoil-assisted trimaran. A design and configuration of a trimaran is evaluated and the performance of a hydrofoil-assisted trimaran is effectively ...

ENGLISH ABSTRACT: Air pollution is a major concern III the Cape Metropole. A major contributor to the air pollution problem is road transport. For this reason, a national vehicle emissions study is in progress with the ...

ENGLISH ABSTRACT: This thesis comprises of the testing and evaluation of a modern diesel engine running on both biodiesel and mineral diesel on the upgraded Bio-fuels Testing Facility (BTF) at Stellenbosch University. The ...

ENGLISH ABSTRACT: The Stellenbosch University Compressor Code (SUCC) has been developed for the purpose of predicting the performance of axial flow compressors by means of axisymmetric inviscid throughflow methods with ...

ENGLISH ABSTRACT: The automotive industry in South Africa is expanding as a result of pressure on the world economy that forces vehicle manufacturers to outsouree work to developing countries. In order to add value to ...

Research conducted on Marion Island aims at predicting the consequence of climate change in the Subantarctic region, as well as for other terrestrial ecosystems. The island has the ideal ecosystem, due to its size, ...

ENGLISH ABSTRACT: This project originated when a team of scientists at the Gobabeb training and research and centre observed seed accumulation sites on the slope of sand dunes in the Namib Desert. Seeds that accumulate ...

ENGLISH ABSTRACT: Neuromechanical computational tools provide insight into the loads around human joints that cannot be measured in vivo. An automated computational pipeline, designed to run with minimal user intervention ...

ENGLISH ABSTRACT: A computational modelling pipeline is introduced to determine knee muscle forces, knee kinematics, patellofemoral contact force and patella kinematics during stance phase of over ground level walking. By ...

ENGLISH ABSTRACT: The most common type of concentrating solar power (CSP) plant in operation today is the parabolic trough plant. In recent years molten salt power tower plants have demonstrated the benefit of using molten ...

This thesis details the conceptual design of a fixture-based, reconfigurable, automated spot welding system aimed at manufacturing various sub-assemblies of circuit breakers. The welding operations are currently done using ...